Trial Outcomes & Findings for Behavioral Weight Loss and Stigma Reduction (NCT NCT03704064)

NCT ID: NCT03704064

Last Updated: 2022-11-02

Results Overview

Estimated mean percent change in weight from baseline to week 72

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

105 participants

Primary outcome timeframe

Baseline to week 72

Results posted on

2022-11-02

Participant Flow

Participant milestones

Participant milestones
Measure
Stigma + BWL Intervention
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Overall Study
STARTED
52
53
Overall Study
Week 20
44
46
Overall Study
Week 46
44
46
Overall Study
Week 72
42
47
Overall Study
COMPLETED
42
47
Overall Study
NOT COMPLETED
10
6

Reasons for withdrawal

Reasons for withdrawal
Measure
Stigma + BWL Intervention
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Overall Study
Lost to Follow-up
8
4
Overall Study
Withdrawal by Subject
1
1
Overall Study
No longer available for study visits
0
1
Overall Study
Censoring event
1
0

Baseline Characteristics

Behavioral Weight Loss and Stigma Reduction

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Total
n=105 Participants
Total of all reporting groups
Age, Continuous
48.96 years
STANDARD_DEVIATION 12.86 • n=99 Participants
49.15 years
STANDARD_DEVIATION 12.05 • n=107 Participants
49.06 years
STANDARD_DEVIATION 12.40 • n=206 Participants
Sex: Female, Male
Female
49 Participants
n=99 Participants
46 Participants
n=107 Participants
95 Participants
n=206 Participants
Sex: Female, Male
Male
3 Participants
n=99 Participants
7 Participants
n=107 Participants
10 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=99 Participants
3 Participants
n=107 Participants
3 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
52 Participants
n=99 Participants
50 Participants
n=107 Participants
102 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
1 Participants
n=107 Participants
1 Participants
n=206 Participants
Race (NIH/OMB)
Asian
0 Participants
n=99 Participants
1 Participants
n=107 Participants
1 Participants
n=206 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Black or African American
12 Participants
n=99 Participants
14 Participants
n=107 Participants
26 Participants
n=206 Participants
Race (NIH/OMB)
White
37 Participants
n=99 Participants
37 Participants
n=107 Participants
74 Participants
n=206 Participants
Race (NIH/OMB)
More than one race
3 Participants
n=99 Participants
0 Participants
n=107 Participants
3 Participants
n=206 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Weight
104.39 kg
STANDARD_DEVIATION 18.21 • n=99 Participants
104.48 kg
STANDARD_DEVIATION 21.04 • n=107 Participants
104.44 kg
STANDARD_DEVIATION 19.59 • n=206 Participants
Height
165.04 cm
STANDARD_DEVIATION 7.13 • n=99 Participants
166.35 cm
STANDARD_DEVIATION 7.87 • n=107 Participants
165.70 cm
STANDARD_DEVIATION 7.51 • n=206 Participants
Body mass index (BMI)
38.23 kg/m^2
STANDARD_DEVIATION 5.59 • n=99 Participants
37.48 kg/m^2
STANDARD_DEVIATION 5.16 • n=107 Participants
37.85 kg/m^2
STANDARD_DEVIATION 5.36 • n=206 Participants

PRIMARY outcome

Timeframe: Baseline to week 72

Estimated mean percent change in weight from baseline to week 72

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Percent Weight Change at Week 72
-7.16 percent weight change
Standard Error 0.95
-5.19 percent weight change
Standard Error 0.92

SECONDARY outcome

Timeframe: Baseline to week 72

The percentage of participants who lost 5% or greater of their initial body weight at week 72

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Loss of 5% or Greater of Initial Body Weight at Week 72
20 Participants
21 Participants

SECONDARY outcome

Timeframe: Baseline to week 72

The percentage of participants who lost 10% or greater of their initial body weight at week 72

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Loss of 10% or Greater of Initial Body Weight at Week 72
14 Participants
7 Participants

SECONDARY outcome

Timeframe: Baseline to week 46

Estimated mean percent weight change

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Percent Weight Change at Week 46
-8.2 percent weight change
Standard Error 0.9
-5.9 percent weight change
Standard Error 0.9

SECONDARY outcome

Timeframe: Baseline to week 20

Estimated mean percent weight change

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Percent Weight Change at Week 20
-6.7 percent weight change
Standard Error 0.9
-5.7 percent weight change
Standard Error 0.9

SECONDARY outcome

Timeframe: Baseline to week 46

The percentage of participants who lost 5% or greater of their initial body weight at week 46

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Loss of 5% or Greater of Initial Body Weight at Week 46
28 Participants
22 Participants

SECONDARY outcome

Timeframe: Baseline to week 46

The percentage of participants who lost 10% or greater of their initial body weight at week 46

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Loss of 10% or Greater of Initial Body Weight at Week 46
15 Participants
9 Participants

SECONDARY outcome

Timeframe: Baseline to week 20

The percentage of participants who lost 5% or greater of their initial body weight at week 20

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Loss of 5% or Greater of Initial Body Weight at Week 20
31 Participants
22 Participants

SECONDARY outcome

Timeframe: Baseline to week 20

The percentage of participants who lost 10% or greater of their initial body weight at week 20

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Loss of 10% or Greater of Initial Body Weight at Week 20
11 Participants
5 Participants

SECONDARY outcome

Timeframe: Baseline to week 72

Estimated mean change in daily minutes of physical activity, as measured by accelerometry

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Minutes of Physical Activity (Accelerometer) at Week 72
MVPA per day with 10 minute bouts
9.6 Minutes per day
Standard Error 4.1
7.2 Minutes per day
Standard Error 4.1
Change in Minutes of Physical Activity (Accelerometer) at Week 72
MVPA per day with 20 minute bouts
9.4 Minutes per day
Standard Error 3.2
8.4 Minutes per day
Standard Error 3.1
Change in Minutes of Physical Activity (Accelerometer) at Week 72
Moderate activity per day
3.2 Minutes per day
Standard Error 6.8
-10.2 Minutes per day
Standard Error 6.7
Change in Minutes of Physical Activity (Accelerometer) at Week 72
Light activity per day
-35.6 Minutes per day
Standard Error 15.1
-51.5 Minutes per day
Standard Error 14.3

SECONDARY outcome

Timeframe: Baseline to week 46

Estimated mean change in daily minutes of physical activity, as measured by accelerometry

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Minutes of Physical Activity (Accelerometer) at Week 46
MVPA per day with 10 minute bouts
9.5 Minutes per day
Standard Error 4.3
5.4 Minutes per day
Standard Error 4.4
Change in Minutes of Physical Activity (Accelerometer) at Week 46
MVPA per day with 20 minute bouts
9.9 Minutes per day
Standard Error 3.4
10.5 Minutes per day
Standard Error 3.2
Change in Minutes of Physical Activity (Accelerometer) at Week 46
Moderate activity per day
0.6 Minutes per day
Standard Error 7.2
-17.9 Minutes per day
Standard Error 7.2
Change in Minutes of Physical Activity (Accelerometer) at Week 46
Light activity per day
-37.1 Minutes per day
Standard Error 15.9
-67.0 Minutes per day
Standard Error 16.0

SECONDARY outcome

Timeframe: Baseline to week 20

Estimated mean change in daily minutes of physical activity, as measured by accelerometry

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Minutes of Physical Activity (Accelerometer) at Week 20
MVPA per day with 10 minute bouts
11.4 Minutes per day
Standard Error 4.0
8.8 Minutes per day
Standard Error 4.1
Change in Minutes of Physical Activity (Accelerometer) at Week 20
MVPA per day with 20 minute bouts
10.5 Minutes per day
Standard Error 2.6
9.9 Minutes per day
Standard Error 2.7
Change in Minutes of Physical Activity (Accelerometer) at Week 20
Moderate activity per day
10.6 Minutes per day
Standard Error 6.7
4.7 Minutes per day
Standard Error 6.7
Change in Minutes of Physical Activity (Accelerometer) at Week 20
Light activity per day
-19.0 Minutes per day
Standard Error 14.2
3.8 Minutes per day
Standard Error 13.2

SECONDARY outcome

Timeframe: Baseline to week 72

Estimated mean change in energy expenditure, as measured by the Paffenbarger Physical Activity Questionnaire. Higher kilocalories (kcal) indicate greater energy expenditure.

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Energy Expenditure at Week 72
314.8 Kcal
Standard Error 105.9
307.5 Kcal
Standard Error 108.0

SECONDARY outcome

Timeframe: Baseline to week 46

Estimated mean change in energy expenditure, as measured by the Paffenbarger Physical Activity Questionnaire. Higher kilocalories (kcal) indicate greater energy expenditure.

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Energy Expenditure at Week 46
148.7 Kcal
Standard Error 90.1
260.4 Kcal
Standard Error 103.5

SECONDARY outcome

Timeframe: Baseline to week 20

Estimated mean change in energy expenditure, as measured by the Paffenbarger Physical Activity Questionnaire. Higher kilocalories (kcal) indicate greater energy expenditure.

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Energy Expenditure at Week 20
452.5 Kcal
Standard Error 111.9
289.3 Kcal
Standard Error 105.6

SECONDARY outcome

Timeframe: Baseline to week 72

Estimated mean change on the Self-Efficacy to Exercise Scale (total score 0-90; higher scores = greater self-efficacy)

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Exercise Self-efficacy at Week 72
-9.4 score on a scale
Standard Error 3.3
-15.0 score on a scale
Standard Error 3.2

SECONDARY outcome

Timeframe: Baseline to week 46

Estimated mean change on the Self-Efficacy to Exercise Scale (total score 0-90; higher scores = greater self-efficacy)

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Exercise Self-efficacy at Week 46
-10.6 score on a scale
Standard Error 3.2
-15.9 score on a scale
Standard Error 3.2

SECONDARY outcome

Timeframe: Baseline to week 20

Estimated mean change on the Self-Efficacy to Exercise Scale (total score 0-90; higher scores = greater self-efficacy)

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Exercise Self-efficacy at Week 20
1.1 score on a scale
Standard Error 3.2
-2.0 score on a scale
Standard Error 3.1

SECONDARY outcome

Timeframe: Baseline to week 72

Estimated mean change on the Weight Efficacy Lifestyle Questionnaire - Short Form (total score 0-72; higher scores = greater self-efficacy)

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Eating Self-efficacy at Week 72
6.5 score on a scale
Standard Error 2.5
1.7 score on a scale
Standard Error 2.4

SECONDARY outcome

Timeframe: Baseline to week 46

Estimated mean change on the Weight Efficacy Lifestyle Questionnaire - Short Form (total score 0-72; higher scores = greater self-efficacy)

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Eating Self-efficacy at Week 46
5.8 score on a scale
Standard Error 2.4
-1.0 score on a scale
Standard Error 2.4

SECONDARY outcome

Timeframe: Baseline to week 20

Estimated mean change on the Weight Efficacy Lifestyle Questionnaire - Short Form (total score 0-72; higher scores = greater self-efficacy)

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Eating Self-efficacy at Week 20
12.3 score on a scale
Standard Error 2.4
8.6 score on a scale
Standard Error 2.3

SECONDARY outcome

Timeframe: Baseline to week 72

Estimated mean change in triglyceride concentration in blood

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Triglycerides at Week 72
-9.9 mg/dL
Standard Error 6.4
-13.7 mg/dL
Standard Error 6.8

SECONDARY outcome

Timeframe: Baseline to week 20

Estimated mean change in triglyceride concentration in blood

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Triglycerides at Week 20
-10.9 mg/dL
Standard Error 6.3
-7.7 mg/dL
Standard Error 6.5

SECONDARY outcome

Timeframe: Baseline to week 72

Estimated mean change in blood pressure (systolic blood pressure and diastolic blood pressure; mmHg)

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Blood Pressure at Week 72
Systolic Blood Pressure
-5.0 mmHg
Standard Error 1.7
-5.6 mmHg
Standard Error 1.8
Change in Blood Pressure at Week 72
Diastolic Blood Pressure
-1.9 mmHg
Standard Error 1.1
-2.0 mmHg
Standard Error 1.1

SECONDARY outcome

Timeframe: Baseline to week 20

Estimated mean change in blood pressure (systolic blood pressure and diastolic blood pressure; mmHg)

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Blood Pressure Week 20
Systolic Blood Pressure
-9.7 mmHG
Standard Error 1.7
-5.4 mmHG
Standard Error 1.6
Change in Blood Pressure Week 20
Diastolic Blood Pressure
-3.5 mmHG
Standard Error 1.1
-3.6 mmHG
Standard Error 1.1

SECONDARY outcome

Timeframe: Baseline to week 72

Estimated mean change score on the Weight Bias Internalization Scale (scale scoring 1-7; higher scores indicate greater weight bias internalization).

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Weight Bias Internalization Scale Score at Week 72
-1.7 score on a scale
Standard Error 0.2
-1.5 score on a scale
Standard Error 0.1

SECONDARY outcome

Timeframe: Baseline to week 46

Estimated mean change score on the Weight Bias Internalization Scale (scale scoring 1-7; higher scores indicate greater weight bias internalization)

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Weight Bias Internalization Scale Score at Week 46
-1.5 score on a scale
Standard Error 0.1
-1.4 score on a scale
Standard Error 0.1

SECONDARY outcome

Timeframe: Baseline to week 20

Estimated mean change score on the Weight Bias Internalization Scale (scale scoring 1-7; higher scores indicate greater weight bias internalization)

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Weight Bias Internalization Scale Score at Week 20
-1.4 score on a scale
Standard Error 0.1
-1.2 score on a scale
Standard Error 0.1

SECONDARY outcome

Timeframe: Baseline to week 72

Percentage of participants who score below 4.0 on the Weight Bias Internalization Scale (scale scoring 1-7; higher scores indicate greater weight bias internalization)

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
"Remission" of Elevated Weight Bias Internalization at Week 72
28 Participants
26 Participants

SECONDARY outcome

Timeframe: Baseline to week 46

Percentage of participants who score below 4.0 on the Weight Bias Internalization Scale (scale scoring 1-7; higher scores indicate greater weight bias internalization)

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
"Remission" of Elevated Weight Bias Internalization at Week 46
24 Participants
25 Participants

SECONDARY outcome

Timeframe: Baseline to week 20

Percentage of participants who score below 4.0 on the Weight Bias Internalization Scale (scale scoring 1-7; higher scores indicate greater weight bias internalization)

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
"Remission" of Elevated Weight Bias Internalization at Week 20
25 Participants
26 Participants

SECONDARY outcome

Timeframe: Baseline to week 72

Estimated mean change score for Total score (WSSQ-Total, summed 12-60) and two subscales of Self-Devaluation (WSSQ-SD) and Fear of Enacted Stigma (WSSQ-FE) (summed 6-30); higher scores indicate greater weight self-stigma.

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Weight Self-stigma Scores at Week 72
WSSQ-Total
-9.7 score on a scale
Standard Error 1.1
-6.7 score on a scale
Standard Error 1.1
Change in Weight Self-stigma Scores at Week 72
WSSQ-SD
-5.0 score on a scale
Standard Error 0.7
-3.8 score on a scale
Standard Error 0.6
Change in Weight Self-stigma Scores at Week 72
WSSQ-FE
-4.7 score on a scale
Standard Error 0.7
-2.9 score on a scale
Standard Error 0.7

SECONDARY outcome

Timeframe: Baseline to week 46

Estimated mean change score for Total score (WSSQ-Total, summed 12-60) and two subscales of Self-Devaluation (WSSQ-SD) and Fear of Enacted Stigma (WSSQ-FE) (summed 6-30); higher scores indicate greater weight self-stigma.

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Weight Self-stigma Scores at Week 46
WSSQ-Total
-8.5 score on a scale
Standard Error 1.1
-5.5 score on a scale
Standard Error 1.1
Change in Weight Self-stigma Scores at Week 46
WSSQ-SD
-4.0 score on a scale
Standard Error 0.7
-2.8 score on a scale
Standard Error 0.6
Change in Weight Self-stigma Scores at Week 46
WSSQ-FE
-4.5 score on a scale
Standard Error 0.6
-2.7 score on a scale
Standard Error 0.6

SECONDARY outcome

Timeframe: Baseline to week 20

Estimated mean change score for Total score (WSSQ-Total, summed 12-60) and two subscales of Self-Devaluation (WSSQ-SD) and Fear of Enacted Stigma (WSSQ-FE) (summed 6-30); higher scores indicate greater weight self-stigma.

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=52 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Change in Weight Self-stigma Scores at Week 20
WSSQ-FE
-3.6 score on a scale
Standard Error 0.6
-2.3 score on a scale
Standard Error 0.6
Change in Weight Self-stigma Scores at Week 20
WSSQ-Total
-8.2 score on a scale
Standard Error 1.1
-5.5 score on a scale
Standard Error 1.1
Change in Weight Self-stigma Scores at Week 20
WSSQ-SD
-4.6 score on a scale
Standard Error 0.7
-3.2 score on a scale
Standard Error 0.6

SECONDARY outcome

Timeframe: Week 20

Population: Participants randomized to the stigma + BWL group did not receive (and thus did not rate) the recipe exchange component of treatment. Participants in the Standard BWL group did not receive (and did not rate) the BIAS treatment component.

To assess treatment acceptability, participants in both groups rated (1-7) how acceptable and helpful the program was, how much they liked the program, and how satisfied they were; scores for these 4 items were averaged. Participants also rated (1-7) the BWL treatment, as well as the stigma intervention (i.e., BIAS component) or recipe exchange, on how helpful they found each component of the program, how much they liked the components, and how much they learned. Scores for these three items were averaged (1-7) separately for the BWL treatment, BIAS component, and recipe exchange. Participants rated how much they learned BWL scores, and how much they learned and used skills related to stigma (all averaged 1-7). Higher scores indicate greater treatment acceptability.

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=44 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=48 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Treatment Acceptability at Week 20
Overall treatment acceptability
6.4 score on a scale
Standard Error 0.2
5.8 score on a scale
Standard Error 0.2
Treatment Acceptability at Week 20
BWL component acceptability
6.1 score on a scale
Standard Error 0.2
5.9 score on a scale
Standard Error 0.2
Treatment Acceptability at Week 20
BIAS vs recipe component acceptability
6.1 score on a scale
Standard Error 0.2
4.6 score on a scale
Standard Error 0.2
Treatment Acceptability at Week 20
BWL skill acquisition
6.2 score on a scale
Standard Error 0.2
5.6 score on a scale
Standard Error 0.2
Treatment Acceptability at Week 20
Stigma-related skill acquisition
5.8 score on a scale
Standard Error 0.2
4.9 score on a scale
Standard Error 0.2
Treatment Acceptability at Week 20
Stigma-related skill use
4.1 score on a scale
Standard Error 0.1
3.3 score on a scale
Standard Error 0.1

SECONDARY outcome

Timeframe: Week 72

Population: Participants randomized to the stigma + BWL group did not receive (and thus did not rate) the recipe exchange component of treatment. Participants in the Standard BWL group did not receive (and did not rate) the BIAS treatment component.

To assess treatment acceptability, participants in both groups rated (1-7) how acceptable and helpful the program was, how much they liked the program, and how satisfied they were; scores for these 4 items were averaged. Participants also rated (1-7) the BWL treatment, as well as the stigma intervention (i.e., BIAS component) or recipe exchange, on how helpful they found each component of the program, how much they liked the components, and how much they learned. Scores for these three items were averaged (1-7) separately for the BWL treatment, BIAS component, and recipe exchange. Participants rated how much they learned BWL scores, and how much they learned and used skills related to stigma (all averaged 1-7). Higher scores indicate greater treatment acceptability.

Outcome measures

Outcome measures
Measure
Stigma + BWL Intervention
n=41 Participants
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=44 Participants
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Treatment Acceptability at Week 72
Overall treatment acceptability
6.1 score on a scale
Standard Error 0.2
5.8 score on a scale
Standard Error 0.2
Treatment Acceptability at Week 72
BWL component acceptability
6.0 score on a scale
Standard Error 0.2
5.7 score on a scale
Standard Error 0.2
Treatment Acceptability at Week 72
BIAS vs recipe component acceptability
5.9 score on a scale
Standard Error 0.3
4.1 score on a scale
Standard Error 0.3
Treatment Acceptability at Week 72
BWL skill acquisition
5.9 score on a scale
Standard Error 0.2
5.6 score on a scale
Standard Error 0.2
Treatment Acceptability at Week 72
Stigma-related skill acquisition
5.8 score on a scale
Standard Error 0.2
5.0 score on a scale
Standard Error 0.2
Treatment Acceptability at Week 72
Stigma-related skill use
3.8 score on a scale
Standard Error 0.1
3.3 score on a scale
Standard Error 0.1

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 72

Single item from Global Physical Activity Questionnaire (minutes)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 46

Single item from Global Physical Activity Questionnaire (minutes)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 20

Single item from Global Physical Activity Questionnaire (minutes)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 72

Concentration in blood, controlling for medication use

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 20

Concentration in blood, controlling for medication use

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 72

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 20

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 72

Concentration in blood, controlling for medication use

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 20

Concentration in blood, controlling for medication use

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 72

Concentration in blood

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 20

Concentration in blood

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 72

Fat Phobia Scale (scores averaged 1-5, with higher scores indicating greater weight bias)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 46

Fat Phobia Scale (scores averaged 1-5, with higher scores indicating greater weight bias)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 20

Fat Phobia Scale (scores averaged 1-5, with higher scores indicating greater weight bias)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 72

Impact of Weight on Quality of Life Questionnaire-Lite (total score and 5 subscales; t-scores ranging from 0-100, with higher scores indicating better quality of life)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 46

Impact of Weight on Quality of Life Questionnaire-Lite (total score and 5 subscales; t-scores ranging from 0-100, with higher scores indicating better quality of life)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 20

Impact of Weight on Quality of Life Questionnaire-Lite (total score and 5 subscales; t-scores ranging from 0-100, with higher scores indicating better quality of life)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 72

Perceived Stress Scale (total score 0-40; higher scores = greater perceived stress)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 46

Perceived Stress Scale (total score 0-40; higher scores = greater perceived stress)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 20

Perceived Stress Scale (total score 0-40; higher scores = greater perceived stress)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 72

Patient Health Questionnaire-9 (scores summed 0-27; higher scores = more symptoms of depression)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 46

Patient Health Questionnaire-9 (scores summed 0-27; higher scores = more symptoms of depression)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 20

Patient Health Questionnaire-9 (scores summed 0-27; higher scores = more symptoms of depression)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 72

Body Appreciation Scale (scores averaged 1-5; higher scores = greater body appreciation)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 46

Body Appreciation Scale (scores averaged 1-5; higher scores = greater body appreciation)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 20

Body Appreciation Scale (scores averaged 1-5; higher scores = greater body appreciation)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 72

Questionnaire on Eating and Weight Patterns (yes/no and episodes per week)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 46

Questionnaire on Eating and Weight Patterns (yes/no and episodes per week)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 20

Questionnaire on Eating and Weight Patterns (yes/no and episodes per week)

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 72

Food records and self-report recording of food intake and physical activity

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 46

Food records and self-report recording of food intake and physical activity

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline to week 20

Food records and self-report recording of food intake and physical activity

Outcome measures

Outcome data not reported

Adverse Events

Stigma + BWL Intervention

Serious events: 0 serious events
Other events: 14 other events
Deaths: 0 deaths

Standard BWL Intervention

Serious events: 0 serious events
Other events: 17 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Stigma + BWL Intervention
n=52 participants at risk
Participants in this group will receive the standard behavioral weight loss (BWL) program, which will be combined with a stigma-reduction intervention (more details provided in the Intervention section). All group meetings will be 90 minutes. Beginning at week 5, the 60-minute BWL sessions will be followed by 30 minutes devoted to stigma-related content. In the monthly and every-other-month weight loss maintenance sessions from weeks 21-72, strategies for coping with weight stigma and challenging internalized beliefs will be reviewed, and participants will be encouraged to use these strategies specifically with physical activity.
Standard BWL Intervention
n=53 participants at risk
Participants in this group will be provided with 20 weekly behavioral weight loss (BWL) session (described in more detail in the Intervention section), followed by 6 monthly weight loss maintenance sessions and 3 every-other-month sessions (for a total of 29 visits over 72 weeks). All group meetings will be 90 minutes. Beginning at week 5, BWL content in these sessions will last 60 minutes, with an additional 30 minutes devoted to discussing recipes and food preparation.
Musculoskeletal and connective tissue disorders
Back pain
5.8%
3/52 • Number of events 3 • Baseline through week 72
At each contact with participants, study personnel non-systematically collected information on any adverse events (AEs) self-reported by participants. In addition, AEs were systematically assessed at the scheduled assessments. AEs were documented by study staff in consultation with a nurse practitioner and/or physician. Serious adverse events (SAEs) were reported immediately to the study sponsor, Data and Safety Monitor, and the Institutional Review Board.
9.4%
5/53 • Number of events 6 • Baseline through week 72
At each contact with participants, study personnel non-systematically collected information on any adverse events (AEs) self-reported by participants. In addition, AEs were systematically assessed at the scheduled assessments. AEs were documented by study staff in consultation with a nurse practitioner and/or physician. Serious adverse events (SAEs) were reported immediately to the study sponsor, Data and Safety Monitor, and the Institutional Review Board.
Musculoskeletal and connective tissue disorders
Knee pain
5.8%
3/52 • Number of events 3 • Baseline through week 72
At each contact with participants, study personnel non-systematically collected information on any adverse events (AEs) self-reported by participants. In addition, AEs were systematically assessed at the scheduled assessments. AEs were documented by study staff in consultation with a nurse practitioner and/or physician. Serious adverse events (SAEs) were reported immediately to the study sponsor, Data and Safety Monitor, and the Institutional Review Board.
7.5%
4/53 • Number of events 5 • Baseline through week 72
At each contact with participants, study personnel non-systematically collected information on any adverse events (AEs) self-reported by participants. In addition, AEs were systematically assessed at the scheduled assessments. AEs were documented by study staff in consultation with a nurse practitioner and/or physician. Serious adverse events (SAEs) were reported immediately to the study sponsor, Data and Safety Monitor, and the Institutional Review Board.
Product Issues
Contact dermatitis
7.7%
4/52 • Number of events 4 • Baseline through week 72
At each contact with participants, study personnel non-systematically collected information on any adverse events (AEs) self-reported by participants. In addition, AEs were systematically assessed at the scheduled assessments. AEs were documented by study staff in consultation with a nurse practitioner and/or physician. Serious adverse events (SAEs) were reported immediately to the study sponsor, Data and Safety Monitor, and the Institutional Review Board.
3.8%
2/53 • Number of events 2 • Baseline through week 72
At each contact with participants, study personnel non-systematically collected information on any adverse events (AEs) self-reported by participants. In addition, AEs were systematically assessed at the scheduled assessments. AEs were documented by study staff in consultation with a nurse practitioner and/or physician. Serious adverse events (SAEs) were reported immediately to the study sponsor, Data and Safety Monitor, and the Institutional Review Board.
Infections and infestations
COVID-19
3.8%
2/52 • Number of events 2 • Baseline through week 72
At each contact with participants, study personnel non-systematically collected information on any adverse events (AEs) self-reported by participants. In addition, AEs were systematically assessed at the scheduled assessments. AEs were documented by study staff in consultation with a nurse practitioner and/or physician. Serious adverse events (SAEs) were reported immediately to the study sponsor, Data and Safety Monitor, and the Institutional Review Board.
5.7%
3/53 • Number of events 3 • Baseline through week 72
At each contact with participants, study personnel non-systematically collected information on any adverse events (AEs) self-reported by participants. In addition, AEs were systematically assessed at the scheduled assessments. AEs were documented by study staff in consultation with a nurse practitioner and/or physician. Serious adverse events (SAEs) were reported immediately to the study sponsor, Data and Safety Monitor, and the Institutional Review Board.
Infections and infestations
Viral gastroenteritis
5.8%
3/52 • Number of events 3 • Baseline through week 72
At each contact with participants, study personnel non-systematically collected information on any adverse events (AEs) self-reported by participants. In addition, AEs were systematically assessed at the scheduled assessments. AEs were documented by study staff in consultation with a nurse practitioner and/or physician. Serious adverse events (SAEs) were reported immediately to the study sponsor, Data and Safety Monitor, and the Institutional Review Board.
13.2%
7/53 • Number of events 7 • Baseline through week 72
At each contact with participants, study personnel non-systematically collected information on any adverse events (AEs) self-reported by participants. In addition, AEs were systematically assessed at the scheduled assessments. AEs were documented by study staff in consultation with a nurse practitioner and/or physician. Serious adverse events (SAEs) were reported immediately to the study sponsor, Data and Safety Monitor, and the Institutional Review Board.
Nervous system disorders
Migraine
7.7%
4/52 • Number of events 4 • Baseline through week 72
At each contact with participants, study personnel non-systematically collected information on any adverse events (AEs) self-reported by participants. In addition, AEs were systematically assessed at the scheduled assessments. AEs were documented by study staff in consultation with a nurse practitioner and/or physician. Serious adverse events (SAEs) were reported immediately to the study sponsor, Data and Safety Monitor, and the Institutional Review Board.
1.9%
1/53 • Number of events 1 • Baseline through week 72
At each contact with participants, study personnel non-systematically collected information on any adverse events (AEs) self-reported by participants. In addition, AEs were systematically assessed at the scheduled assessments. AEs were documented by study staff in consultation with a nurse practitioner and/or physician. Serious adverse events (SAEs) were reported immediately to the study sponsor, Data and Safety Monitor, and the Institutional Review Board.

Additional Information

Dr. Rebecca Pearl, Assistant Professor

University of Florida

Phone: 352-294-5405

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place