Trial Outcomes & Findings for Cigarette Pack Inserts for Smoking Cessation (NCT NCT04075682)

NCT ID: NCT04075682

Last Updated: 2024-05-13

Results Overview

A single question measured on a continuous scale (1="Not at all", worse outcome; 7="Extremely", better outcome) to assess strength of confidence to quit smoking, with average scores (range 1-7) estimated.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

387 participants

Primary outcome timeframe

Evaluated approximately 4-5 times a day over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying coverage of the day depending on study orientation time.

Results posted on

2024-05-13

Participant Flow

Participant milestones

Participant milestones
Measure
Standard Cigarette Packs (Control)
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Overall Study
STARTED
108
94
94
91
Overall Study
COMPLETED
101
87
90
89
Overall Study
NOT COMPLETED
7
7
4
2

Reasons for withdrawal

Reasons for withdrawal
Measure
Standard Cigarette Packs (Control)
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Overall Study
Lost to Follow-up
5
5
2
2
Overall Study
Withdrawal by Subject
1
0
1
0
Overall Study
Protocol Violation
0
1
1
0
Overall Study
Not literate enough to self-administer study surveys
1
0
0
0
Overall Study
Lost study phone the first day of study participation
0
1
0
0

Baseline Characteristics

This 3-item scale with Likert response options was averaged across the three items and has a range of 1-5, where higher values represent a better outcome (i.e., greater confidence to quit smoking).

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=87 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=90 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Total
n=367 Participants
Total of all reporting groups
Age, Customized
18-35 years old
27 Participants
n=101 Participants
27 Participants
n=87 Participants
26 Participants
n=90 Participants
21 Participants
n=89 Participants
101 Participants
n=367 Participants
Age, Customized
36-55 years old
54 Participants
n=101 Participants
42 Participants
n=87 Participants
46 Participants
n=90 Participants
49 Participants
n=89 Participants
191 Participants
n=367 Participants
Age, Customized
56 years old and older
20 Participants
n=101 Participants
18 Participants
n=87 Participants
18 Participants
n=90 Participants
19 Participants
n=89 Participants
75 Participants
n=367 Participants
Sex: Female, Male
Sex · Female
60 Participants
n=101 Participants
52 Participants
n=87 Participants
52 Participants
n=90 Participants
61 Participants
n=89 Participants
225 Participants
n=367 Participants
Sex: Female, Male
Sex · Male
41 Participants
n=101 Participants
35 Participants
n=87 Participants
38 Participants
n=90 Participants
28 Participants
n=89 Participants
142 Participants
n=367 Participants
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants
n=101 Participants
1 Participants
n=87 Participants
0 Participants
n=90 Participants
1 Participants
n=89 Participants
4 Participants
n=367 Participants
Race (NIH/OMB)
Asian
1 Participants
n=101 Participants
0 Participants
n=87 Participants
1 Participants
n=90 Participants
0 Participants
n=89 Participants
2 Participants
n=367 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=101 Participants
0 Participants
n=87 Participants
1 Participants
n=90 Participants
0 Participants
n=89 Participants
1 Participants
n=367 Participants
Race (NIH/OMB)
Black or African American
17 Participants
n=101 Participants
8 Participants
n=87 Participants
8 Participants
n=90 Participants
14 Participants
n=89 Participants
47 Participants
n=367 Participants
Race (NIH/OMB)
White
75 Participants
n=101 Participants
74 Participants
n=87 Participants
73 Participants
n=90 Participants
71 Participants
n=89 Participants
293 Participants
n=367 Participants
Race (NIH/OMB)
More than one race
2 Participants
n=101 Participants
2 Participants
n=87 Participants
3 Participants
n=90 Participants
1 Participants
n=89 Participants
8 Participants
n=367 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants
n=101 Participants
2 Participants
n=87 Participants
4 Participants
n=90 Participants
2 Participants
n=89 Participants
12 Participants
n=367 Participants
Region of Enrollment
United States
101 participants
n=101 Participants
87 participants
n=87 Participants
90 participants
n=90 Participants
89 participants
n=89 Participants
367 participants
n=367 Participants
Educational Attainment
High School Education or less
48 participants
n=101 Participants
36 participants
n=87 Participants
30 participants
n=90 Participants
39 participants
n=89 Participants
153 participants
n=367 Participants
Educational Attainment
Greater than High School Education
53 participants
n=101 Participants
49 participants
n=87 Participants
57 participants
n=90 Participants
50 participants
n=89 Participants
209 participants
n=367 Participants
Educational Attainment
Missing
0 participants
n=101 Participants
2 participants
n=87 Participants
3 participants
n=90 Participants
0 participants
n=89 Participants
5 participants
n=367 Participants
Health Literacy
Adequate
66 participants
n=101 Participants
61 participants
n=87 Participants
66 participants
n=90 Participants
63 participants
n=89 Participants
256 participants
n=367 Participants
Health Literacy
Limited OR Possibly Limited
35 participants
n=101 Participants
26 participants
n=87 Participants
24 participants
n=90 Participants
26 participants
n=89 Participants
111 participants
n=367 Participants
Self-efficacy to quit smoking
2.32 units on a scale
STANDARD_DEVIATION 1.06 • n=100 Participants • This 3-item scale with Likert response options was averaged across the three items and has a range of 1-5, where higher values represent a better outcome (i.e., greater confidence to quit smoking).
2.30 units on a scale
STANDARD_DEVIATION 0.92 • n=83 Participants • This 3-item scale with Likert response options was averaged across the three items and has a range of 1-5, where higher values represent a better outcome (i.e., greater confidence to quit smoking).
2.39 units on a scale
STANDARD_DEVIATION 1.05 • n=88 Participants • This 3-item scale with Likert response options was averaged across the three items and has a range of 1-5, where higher values represent a better outcome (i.e., greater confidence to quit smoking).
2.21 units on a scale
STANDARD_DEVIATION 0.81 • n=88 Participants • This 3-item scale with Likert response options was averaged across the three items and has a range of 1-5, where higher values represent a better outcome (i.e., greater confidence to quit smoking).
2.31 units on a scale
STANDARD_DEVIATION 0.97 • n=359 Participants • This 3-item scale with Likert response options was averaged across the three items and has a range of 1-5, where higher values represent a better outcome (i.e., greater confidence to quit smoking).
Delayed Discounting
0.56 units on a scale
STANDARD_DEVIATION 3.37 • n=101 Participants
0.40 units on a scale
STANDARD_DEVIATION 2.70 • n=87 Participants
0.36 units on a scale
STANDARD_DEVIATION 2.56 • n=90 Participants
0.60 units on a scale
STANDARD_DEVIATION 3.57 • n=89 Participants
0.48 units on a scale
STANDARD_DEVIATION 3.08 • n=367 Participants

PRIMARY outcome

Timeframe: Evaluated approximately 4-5 times a day over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying coverage of the day depending on study orientation time.

Population: Analyses include repeated observations from daily cigarette surveys. Analytic samples for H6 differ due to some missing data for each moderating variable: education (control=101; insert only=84; pictorial warnings only=87; insert + pictorial warnings=88); health literacy (control=101; insert only=86; pictorial warnings only=90; insert + pictorial warnings=88); and delayed discounting (control=101; insert only=84; pictorial warnings only=88; insert + pictorial warnings=88).

A single question measured on a continuous scale (1="Not at all", worse outcome; 7="Extremely", better outcome) to assess strength of confidence to quit smoking, with average scores (range 1-7) estimated.

Outcome measures

Outcome measures
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=86 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=90 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Self-efficacy to Quit Smoking
2.61 score on a scale
Standard Deviation 1.44
2.76 score on a scale
Standard Deviation 1.55
2.62 score on a scale
Standard Deviation 1.52
2.56 score on a scale
Standard Deviation 1.40

PRIMARY outcome

Timeframe: Evaluated approximately 4-5 times a day over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying coverage of the day depending on study orientation time.

Population: Analyses include repeated observations from daily cigarette surveys. Analytic samples for H6 differ due to some missing data for each moderating variable: education (control=101; insert only=84; pictorial warnings only=87; insert + pictorial warnings=88); health literacy (control=101; insert only=86; pictorial warnings only=90; insert + pictorial warnings=88); and delayed discounting (control=101; insert only=84; pictorial warnings only=88; insert + pictorial warnings=88).

A single question measured on a continuous scale (1="Not at all", worse outcome; 7="Extremely", better outcome) to assess strength of confidence to cut down on the number of cigarettes smoked, with average scores (range=1-7) estimated.

Outcome measures

Outcome measures
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=86 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=90 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Self-efficacy to Cut Down on Smoking
3.15 score on a scale
Standard Deviation 1.42
3.52 score on a scale
Standard Deviation 1.59
3.29 score on a scale
Standard Deviation 1.51
3.18 score on a scale
Standard Deviation 1.56

PRIMARY outcome

Timeframe: Evaluated approximately 4-5 times a day over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying coverage of the day depending on study orientation time.

Population: Analyses include repeated observations collected from daily cigarette surveys. The number of participants in the analytic sample is slightly smaller for H5 (control=101; insert only=84; pictorial warnings only=88; insert + pictorial warnings=88) due to missing data from the baseline survey that provides information for the moderating variables.

A single question measured on a continuous scale to assess strength of worry about harms from smoking (1="Not at all", worse outcome; 7="Extremely", better outcome), with average scores (range=1-7) estimated.

Outcome measures

Outcome measures
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=86 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=90 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Worry About Harms From Smoking
4.34 score on a scale
Standard Deviation 1.94
4.84 score on a scale
Standard Deviation 1.74
4.46 score on a scale
Standard Deviation 1.91
4.47 score on a scale
Standard Deviation 1.75

PRIMARY outcome

Timeframe: Evaluated approximately 4-5 times a day over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying coverage of the day depending on study orientation time.

Population: Analyses include repeated observations collected from daily cigarette surveys. The number of participants in the analytic sample is slightly smaller for H5 (control=101; insert only=84; pictorial warnings only=88; insert + pictorial warnings=88) due to missing data from the baseline survey that provides information for the moderating variables.

A single question measured on a continuous scale to assess strength of positive to negative feelings about smoking (1="very bad", better outcome; 7="very good", worse outcome), with average scores (range=1-7) estimated

Outcome measures

Outcome measures
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=86 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=90 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Strength of Feeling About Smoking
3.98 score on a scale
Standard Deviation 1.77
3.75 score on a scale
Standard Deviation 1.60
3.71 score on a scale
Standard Deviation 1.65
3.85 score on a scale
Standard Deviation 1.67

PRIMARY outcome

Timeframe: Evaluated approximately 4-5 times a day over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying coverage of the day depending on study orientation time.

Population: Analyses include repeated observations from daily cigarette surveys. Due to missing data on moderators, the analytic sample differs for H5 (control=101; insert only=84; pictorial warnings only=88; insert + pictorial warnings=88) and for each H6 moderating variable: education (n=101, 84, 87, and 88, respectively); health literacy (n=101, 86, 90, and 88, respectively); and delayed discounting (n=101, 84, 88, and 88, respectively).

A single question measured on a continuous scale to assess the extent of motivation to quit smoking (1="Not at all", worse outcome; 7="Extremely", better outcome), with average scores (range=1-7) estimated.

Outcome measures

Outcome measures
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=86 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=90 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Extent of Motivation to Quit Smoking
3.63 score on a scale
Standard Deviation 1.64
4.00 score on a scale
Standard Deviation 1.76
3.76 score on a scale
Standard Deviation 1.79
3.62 score on a scale
Standard Deviation 1.74

PRIMARY outcome

Timeframe: Evaluated once each day (evening survey) over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying intervention exposure and coverage of the day, depending on study orientation time.

Population: Analyses include repeated observations from evening reports. Due to missing data on moderators, the analytic sample differs for H5 (control=101; insert only=84; pictorial warnings only=88; insert + pictorial warnings=88) and for each H6 moderating variable: education (n=101, 85, 87, and 88, respectively); health literacy (n=101, 87, 90, and 88, respectively); and delayed discounting (n=101, 85, 88, and 88, respectively).

For each day, a single binary variable was derived to indicate whether the participant talked about either smoking cessation or smoking-related harms in the prior 24 hours, with the average daily percentage of this outcome estimated. Experiencing the event of talking about cessation or harms is a better outcome, as it is a predictor of cessation attempts.

Outcome measures

Outcome measures
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=87 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=90 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=88 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Talk About Smoking Cessation
0.1589 percentage of days (events/days)
Standard Deviation 0.3658
0.1645 percentage of days (events/days)
Standard Deviation 0.3709
0.1833 percentage of days (events/days)
Standard Deviation 0.3871
0.1898 percentage of days (events/days)
Standard Deviation 0.3924

PRIMARY outcome

Timeframe: Evaluated once each day (evening survey) over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying intervention exposure and coverage of the day, depending on study orientation time.

Population: Analyses include repeated observations from evening reports. Due to missing data on moderators, the analytic sample differs for H5 (control=101; insert only=84; pictorial warnings only=88; insert + pictorial warnings=88) and for each H6 moderating variable: education (n=101, 85, 87, and 88, respectively); health literacy (n=101, 87, 90, and 88, respectively); and delayed discounting (n=101, 85, 88, and 88, respectively).

For each day, responses to two questions were combined to create a binary variable for whether, in the prior 24 hours, the participant a) did not smoke a cigarette when they normally would, and/or b) stubbed out a cigarette before finishing it, with the average daily percentage of this outcome estimated. Experiencing the event of forgoing/stubbing out is a better outcome, as it is a predictor of cessation attempts.

Outcome measures

Outcome measures
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=87 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=90 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=88 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Foregoing a Cigarette
0.3882 percentage of days (events/days)
Standard Error 0.4876
0.5479 percentage of days (events/days)
Standard Error 0.498
0.4916 percentage of days (events/days)
Standard Error 0.5002
0.5807 percentage of days (events/days)
Standard Error 0.4937

SECONDARY outcome

Timeframe: Evaluated approximately 4-5 times a day over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying coverage of the day depending on study orientation time.

Population: Analyses include repeated observations from daily cigarette surveys. Analytic samples for H6 differ due to some missing data for each moderating variable: education (control=101; insert only=84; pictorial warnings only=87; insert + pictorial warnings=88); health literacy (control=101; insert only=86; pictorial warnings only=90; insert + pictorial warnings=88); and delayed discounting (control=101; insert only=84; pictorial warnings only=88; insert + pictorial warnings=88).

A single question measured on a continuous scale to assess strength of feeling hopeful about quitting (1="Not at all", worse outcome; 7="Extremely", better outcome), with average scores (range 1-7) estimated.

Outcome measures

Outcome measures
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=86 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=90 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Strength of Hopefulness About Quitting
3.80 score on a scale
Standard Deviation 1.80
4.25 score on a scale
Standard Deviation 1.91
3.96 score on a scale
Standard Deviation 1.87
3.86 score on a scale
Standard Deviation 1.889

SECONDARY outcome

Timeframe: Evaluated once each day (evening survey) over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying intervention exposure and coverage of the day, depending on study orientation time.

Population: Analyses include repeated observations collected from evening surveys.

A single question measured on a continuous scale to assess the frequency of thinking about the positive things about smoking (1="Not at all", better outcome; 7="Extremely", worse outcome), with average scores (range 1-7) estimated.

Outcome measures

Outcome measures
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=86 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Extent of Cognitive Elaboration of Smoking Benefits
3.19 score on a scale
Standard Deviation 1.72
3.20 score on a scale
Standard Deviation 1.64
3.16 score on a scale
Standard Deviation 1.69
3.17 score on a scale
Standard Deviation 1.70

SECONDARY outcome

Timeframe: Evaluated once each day (evening survey) over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying intervention exposure and coverage of the day, depending on study orientation time.

Population: Analyses include repeated observations collected from daily cigarette surveys or evening reports, depending on the outcome. The number of participants in the analytic sample is slightly smaller for H5 (control=101; insert only=84; pictorial warnings only=88; insert + pictorial warnings=88) due to missing data from the baseline survey that provides information for the moderating variables.

A single question measured on a continuous scale to assess the frequency of thinking about the harms from smoking (1="Not at all", worse outcome; 7="Extremely", better outcome), with average scores (range 1-7) estimated.

Outcome measures

Outcome measures
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=87 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Extent of Cognitive Elaboration of Smoking Harms
3.91 score on a scale
Standard Deviation 1.83
4.40 score on a scale
Standard Deviation 1.77
3.95 score on a scale
Standard Deviation 1.89
4.15 score on a scale
Standard Deviation 1.77

SECONDARY outcome

Timeframe: Evaluated once each day (evening survey) over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying intervention exposure and coverage of the day, depending on study orientation time.

Population: Analyses include repeated observations from evening reports. Analytic samples for H6 differ due to some missing data for each moderating variable: education (control=101; insert only=84; pictorial warnings only=87; insert + pictorial warnings=88); health literacy (control=101; insert only=86; pictorial warnings only=90; insert + pictorial warnings=88); and delayed discounting (control=101; insert only=84; pictorial warnings only=88; insert + pictorial warnings=88).

A single question measured on a continuous scale to assess the frequency of thinking about the potential benefits from cessation (1="Not at all", worse outcome; 7="Extremely", better outcome), with average scores (range 1-7) estimated.

Outcome measures

Outcome measures
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=86 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Extent of Cognitive Elaboration of Cessation Benefits
4.07 score on a scale
Standard Deviation 1.81
4.62 score on a scale
Standard Deviation 1.77
4.13 score on a scale
Standard Deviation 1.90
4.34 score on a scale
Standard Deviation 1.77

SECONDARY outcome

Timeframe: Evaluated once each day (evening survey) over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying intervention exposure and coverage of the day, depending on study orientation time.

Population: Analyses include repeated observations from evening reports. Analytic samples for H6 differ due to some missing data for each moderating variable: education (control=101; insert only=84; pictorial warnings only=87; insert + pictorial warnings=88); health literacy (control=101; insert only=86; pictorial warnings only=90; insert + pictorial warnings=88); and delayed discounting (control=101; insert only=84; pictorial warnings only=88; insert + pictorial warnings=88).

A single question measured on a continuous scale to assess the strength of perceived benefits from cessation (1="Not at all", worse outcome; 7="Extremely", better outcome), with average scores (range 1-7) estimated.

Outcome measures

Outcome measures
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=87 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Strength of Beliefs About Benefits of Smoking Cessation (i.e., Response Efficacy)
4.69 Score on a scale
Standard Deviation 1.87
5.18 Score on a scale
Standard Deviation 1.51
4.96 Score on a scale
Standard Deviation 1.78
4.95 Score on a scale
Standard Deviation 1.65

SECONDARY outcome

Timeframe: Evaluated once each day (evening survey) over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying intervention exposure and coverage of the day, depending on study orientation time.

Population: Analyses include repeated observations collected from evening reports. The number of participants in the analytic sample is slightly smaller for H5 (control=101; insert only=84; pictorial warnings only=88; insert + pictorial warnings=88) due to missing data from the baseline survey that provides information for the moderating variable.

A single question measured on a continuous scale to assess the perceived likelihood of suffering harms from smoking (1="Not at all", worse outcome; 7="Extremely", better outcome), with average scores (range 1-7) estimated.

Outcome measures

Outcome measures
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=87 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Strength of Perceived Susceptibility to Smoking Harms
4.95 score on a scale
Standard Deviation 1.81
5.53 score on a scale
Standard Deviation 1.42
5.21 score on a scale
Standard Deviation 1.76
5.21 score on a scale
Standard Deviation 1.61

SECONDARY outcome

Timeframe: Evaluated once each day (evening survey) over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying intervention exposure and coverage of the day, depending on study orientation time.

Population: Analyses include repeated observations collected from daily cigarette surveys or evening reports, depending on the outcome. The number of participants in the analytic sample is slightly smaller for H5 (control=101; insert only=84; pictorial warnings only=88; insert + pictorial warnings=88) due to missing data from the baseline survey that provides information for the moderating variables.

a. Binary measure for whether the participant reported talking about how health information on packs is either useless or not believable in the prior 24 hours, with the average daily percentage of this outcome estimated. Experiencing the event is a worse outcome, as it suggests defensive responding to labels.

Outcome measures

Outcome measures
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=87 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=90 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Expressed Reactance Against Health Messages
0.0103 percentage of days (events/days)
Standard Deviation 0.1011
0.0194 percentage of days (events/days)
Standard Deviation 0.1380
0.0369 percentage of days (events/days)
Standard Deviation 0.1885
0.0157 percentage of days (events/days)
Standard Deviation 0.1242

SECONDARY outcome

Timeframe: Evaluated approximately 4-5 times a day over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying coverage of the day depending on study orientation time.

Population: Analyses include repeated observations collected from daily cigarette surveys.

Single question measured on a continuous scale that assesses strength of satisfaction from smoking (1="Not at all", better outcome; 7="Extremely", worse outcome), with average scores (range 1-7) estimated.

Outcome measures

Outcome measures
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=86 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=90 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Satisfaction From Smoking
4.95 score on a scale
Standard Deviation 1.47
4.89 score on a scale
Standard Deviation 1.43
4.74 score on a scale
Standard Deviation 1.56
4.83 score on a scale
Standard Deviation 1.45

SECONDARY outcome

Timeframe: Participants logged each cigarette smoked over the 14 day study period, with analyses limited to reports from days 2-14. Day 1 and 15 were dropped due to varying coverage of the day depending on study orientation time (Day 1) and ending (Day 15).

Population: Analyses assess the sum of all cigarettes participants logged from days 2-14 of the study. Due to missing data on moderators, the analytic sample differs for H5 (control=101; insert only=84; pictorial warnings only=88; insert + pictorial warnings=88) and for each H6 moderating variable: education (n=101, 85, 87, and 88, respectively); health literacy (n=101, 87, 90, and 88, respectively); and delayed discounting (n=101, 85, 88, and 88, respectively).

Continuous variable summing the total number of cigarettes logged over the study period. Lower values represent a better outcome (i.e., fewer cigarettes smoked).

Outcome measures

Outcome measures
Measure
Standard Cigarette Packs (Control)
n=101 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=87 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=90 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=89 Participants
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarettes Logged
181.1 cigarettes
Standard Deviation 81.90
185.9 cigarettes
Standard Deviation 95.85
190.3 cigarettes
Standard Deviation 103.00
185.8 cigarettes
Standard Deviation 97.42

OTHER_PRE_SPECIFIED outcome

Timeframe: Evaluated once each day (evening survey) over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying intervention exposure and coverage of the day, depending on study orientation time.

Nominal variable indicating the types of people with whom people talked about smoking and cessation in the prior 24 hours

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Evaluated once each day (evening survey) over the 14 day study period, with analyses limited to days 2-14. Day 1 was dropped due to varying intervention exposure and coverage of the day, depending on study orientation time.

Nominal variable indicating the topics of conversation around smoking in the prior 24 hours

Outcome measures

Outcome data not reported

Adverse Events

Standard Cigarette Packs (Control)

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

Cigarette Packs With Inserts Only

Serious events: 1 serious events
Other events: 0 other events
Deaths: 0 deaths

Cigarette Packs With Pictorial Warnings Only

Serious events: 1 serious events
Other events: 0 other events
Deaths: 0 deaths

Cigarette Packs With Inserts and Pictorial Warnings

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

Serious adverse events

Serious adverse events
Measure
Standard Cigarette Packs (Control)
n=108 participants at risk
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with the only alteration being the small health warning message on the side of the pack, whose textual content will be the same as that used for the pictorial warning label conditions.
Cigarette Packs With Inserts Only
n=94 participants at risk
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four different rotating messages to promote response efficacy beliefs (2 inserts on the benefits of cessation) or self-efficacy to quit (2 inserts with cessation tips). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs.
Cigarette Packs With Pictorial Warnings Only
n=94 participants at risk
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include four different rotating pictorial warnings showing the consequences of smoking and that cover 50% of the front and back of the pack. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cigarette Packs With Inserts and Pictorial Warnings
n=91 participants at risk
Participants will be provided with a 2 week supply of their preferred brand of cigarettes, with packs altered to include inserts with four rotating efficacy messages (see description above) and four rotating pictorial warnings (see above). Inserts with efficacy messages: Four rotating inserts (i.e., small, printed messages) with messages about cessation benefits (i.e., response efficacy) and tips to quit (i.e., self-efficacy messages) will be placed inside cigarette packs. Pictorial warnings on packs: Four rotating pictorial warnings illustrating the harms of smoking will be printed on labels that will placed on and cover approximately 50% of the cigarette packs.
Cardiac disorders
Heart Attack
0.00%
0/108 • Adverse events were assessed during the 14 day study participation period.
Adverse events were detected through the standardized study protocol of phoning participants when they stopped recording cigarettes and responding to evening surveys. Through this approach, we detected two adverse events that required hospitalization and may have been caused by long-term smoking.
1.1%
1/94 • Number of events 1 • Adverse events were assessed during the 14 day study participation period.
Adverse events were detected through the standardized study protocol of phoning participants when they stopped recording cigarettes and responding to evening surveys. Through this approach, we detected two adverse events that required hospitalization and may have been caused by long-term smoking.
0.00%
0/94 • Adverse events were assessed during the 14 day study participation period.
Adverse events were detected through the standardized study protocol of phoning participants when they stopped recording cigarettes and responding to evening surveys. Through this approach, we detected two adverse events that required hospitalization and may have been caused by long-term smoking.
0.00%
0/91 • Adverse events were assessed during the 14 day study participation period.
Adverse events were detected through the standardized study protocol of phoning participants when they stopped recording cigarettes and responding to evening surveys. Through this approach, we detected two adverse events that required hospitalization and may have been caused by long-term smoking.
Vascular disorders
Mini stroke
0.00%
0/108 • Adverse events were assessed during the 14 day study participation period.
Adverse events were detected through the standardized study protocol of phoning participants when they stopped recording cigarettes and responding to evening surveys. Through this approach, we detected two adverse events that required hospitalization and may have been caused by long-term smoking.
0.00%
0/94 • Adverse events were assessed during the 14 day study participation period.
Adverse events were detected through the standardized study protocol of phoning participants when they stopped recording cigarettes and responding to evening surveys. Through this approach, we detected two adverse events that required hospitalization and may have been caused by long-term smoking.
1.1%
1/94 • Number of events 1 • Adverse events were assessed during the 14 day study participation period.
Adverse events were detected through the standardized study protocol of phoning participants when they stopped recording cigarettes and responding to evening surveys. Through this approach, we detected two adverse events that required hospitalization and may have been caused by long-term smoking.
0.00%
0/91 • Adverse events were assessed during the 14 day study participation period.
Adverse events were detected through the standardized study protocol of phoning participants when they stopped recording cigarettes and responding to evening surveys. Through this approach, we detected two adverse events that required hospitalization and may have been caused by long-term smoking.

Other adverse events

Adverse event data not reported

Additional Information

Dr. James F. Thrasher

University of South Carolina

Phone: 803.777.4862

Results disclosure agreements

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