Trial Outcomes & Findings for Caregiver Training to Prevent Konzo Disease in Children in Democratic Republic of Congo (DRC) (NCT NCT04036708)

NCT ID: NCT04036708

Last Updated: 2024-04-24

Results Overview

The Mullen Scales of Early Learning (MSEL) assesses child developmental domains: visual reception, gross motor skills, fine motor skills, receptive language, and expressive language. A composite t-score derived from standardized t-scores of the four domains (excluding gross motor) provides a measure of g, the general measure of fluid intelligence thought to underlie general cognitive ability. The composite t-score ranges from 40 to 130. The t-scores have mean 100 and standard deviation 15 in the Western population. Higher scores reflect better outcome. Measure is applicable to children only, not collected from caregivers

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

238 participants

Primary outcome timeframe

Month 6, month 12

Results posted on

2024-04-24

Participant Flow

Participant milestones

Participant milestones
Measure
MISC and WTM, Children
Wetting method (WTM)+ Mediational Intervention for Sensitizing Caregivers (MISC) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months Mediational Intervention for Sensitizing Caregivers (MISC): The study team will use MISC to train DRC mothers in practical day-to-day activities with their children to enhance 5 key mediational processes: 1) focusing (getting the child's attention and engaging directing them to learning experiences); 2) exciting (communicating excitement, appreciation, and affection with the learning experience); 3) expanding (making the child aware of how the learning experience transcends the present situation and can include past and future issues beyond the immediate need of the moment); 4) encouraging (emotional support to foster the child's sense of security and competence); and 5) regulating (helping to direct the child's behavior in constructive ways with a goal towards self-regulation).
WTM Only, Children
WTM trainings only (recommended standard of care) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months
MISC and WTM, Caregivers
Wetting method (WTM)+ Mediational Intervention for Sensitizing Caregivers (MISC) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months Mediational Intervention for Sensitizing Caregivers (MISC): The study team will use MISC to train DRC mothers in practical day-to-day activities with their children to enhance 5 key mediational processes: 1) focusing (getting the child's attention and engaging directing them to learning experiences); 2) exciting (communicating excitement, appreciation, and affection with the learning experience); 3) expanding (making the child aware of how the learning experience transcends the present situation and can include past and future issues beyond the immediate need of the moment); 4) encouraging (emotional support to foster the child's sense of security and competence); and 5) regulating (helping to direct the child's behavior in constructive ways with a goal towards self-regulation).
WTM Only, Caregivers
WTM trainings only (recommended standard of care) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months
Overall Study
STARTED
79
40
79
40
Overall Study
COMPLETED
65
36
65
36
Overall Study
NOT COMPLETED
14
4
14
4

Reasons for withdrawal

Reasons for withdrawal
Measure
MISC and WTM, Children
Wetting method (WTM)+ Mediational Intervention for Sensitizing Caregivers (MISC) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months Mediational Intervention for Sensitizing Caregivers (MISC): The study team will use MISC to train DRC mothers in practical day-to-day activities with their children to enhance 5 key mediational processes: 1) focusing (getting the child's attention and engaging directing them to learning experiences); 2) exciting (communicating excitement, appreciation, and affection with the learning experience); 3) expanding (making the child aware of how the learning experience transcends the present situation and can include past and future issues beyond the immediate need of the moment); 4) encouraging (emotional support to foster the child's sense of security and competence); and 5) regulating (helping to direct the child's behavior in constructive ways with a goal towards self-regulation).
WTM Only, Children
WTM trainings only (recommended standard of care) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months
MISC and WTM, Caregivers
Wetting method (WTM)+ Mediational Intervention for Sensitizing Caregivers (MISC) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months Mediational Intervention for Sensitizing Caregivers (MISC): The study team will use MISC to train DRC mothers in practical day-to-day activities with their children to enhance 5 key mediational processes: 1) focusing (getting the child's attention and engaging directing them to learning experiences); 2) exciting (communicating excitement, appreciation, and affection with the learning experience); 3) expanding (making the child aware of how the learning experience transcends the present situation and can include past and future issues beyond the immediate need of the moment); 4) encouraging (emotional support to foster the child's sense of security and competence); and 5) regulating (helping to direct the child's behavior in constructive ways with a goal towards self-regulation).
WTM Only, Caregivers
WTM trainings only (recommended standard of care) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months
Overall Study
Lost to Follow-up
14
4
14
4

Baseline Characteristics

This measure is applicable to children only. Data were not collected from caregivers.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
MISC and WTM, Children
n=79 Participants
Wetting method (WTM)+ Mediational Intervention for Sensitizing Caregivers (MISC) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months Mediational Intervention for Sensitizing Caregivers (MISC): The study team will use MISC to train DRC mothers in practical day-to-day activities with their children to enhance 5 key mediational processes: 1) focusing (getting the child's attention and engaging directing them to learning experiences); 2) exciting (communicating excitement, appreciation, and affection with the learning experience); 3) expanding (making the child aware of how the learning experience transcends the present situation and can include past and future issues beyond the immediate need of the moment); 4) encouraging (emotional support to foster the child's sense of security and competence); and 5) regulating (helping to direct the child's behavior in constructive ways with a goal towards self-regulation).
WTM Only, Children
n=40 Participants
WTM trainings only (recommended standard of care) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months
MISC and WTM, Caregivers
n=79 Participants
Wetting method (WTM)+ Mediational Intervention for Sensitizing Caregivers (MISC) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months Mediational Intervention for Sensitizing Caregivers (MISC): The study team will use MISC to train DRC mothers in practical day-to-day activities with their children to enhance 5 key mediational processes: 1) focusing (getting the child's attention and engaging directing them to learning experiences); 2) exciting (communicating excitement, appreciation, and affection with the learning experience); 3) expanding (making the child aware of how the learning experience transcends the present situation and can include past and future issues beyond the immediate need of the moment); 4) encouraging (emotional support to foster the child's sense of security and competence); and 5) regulating (helping to direct the child's behavior in constructive ways with a goal towards self-regulation).
WTM Only, Caregivers
n=40 Participants
WTM trainings only (recommended standard of care) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months
Total
n=238 Participants
Total of all reporting groups
Age, Continuous
2.38 years
STANDARD_DEVIATION 0.68 • n=79 Participants
2.34 years
STANDARD_DEVIATION 0.74 • n=40 Participants
28.46 years
STANDARD_DEVIATION 8.37 • n=79 Participants
27.98 years
STANDARD_DEVIATION 9.05 • n=40 Participants
15.44 years
STANDARD_DEVIATION 4.71 • n=238 Participants
Sex: Female, Male
Female
47 Participants
n=79 Participants
23 Participants
n=40 Participants
79 Participants
n=79 Participants
40 Participants
n=40 Participants
189 Participants
n=238 Participants
Sex: Female, Male
Male
32 Participants
n=79 Participants
17 Participants
n=40 Participants
0 Participants
n=79 Participants
0 Participants
n=40 Participants
49 Participants
n=238 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=79 Participants
0 Participants
n=40 Participants
0 Participants
n=79 Participants
0 Participants
n=40 Participants
0 Participants
n=238 Participants
Race (NIH/OMB)
Asian
0 Participants
n=79 Participants
0 Participants
n=40 Participants
0 Participants
n=79 Participants
0 Participants
n=40 Participants
0 Participants
n=238 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=79 Participants
0 Participants
n=40 Participants
0 Participants
n=79 Participants
0 Participants
n=40 Participants
0 Participants
n=238 Participants
Race (NIH/OMB)
Black or African American
79 Participants
n=79 Participants
40 Participants
n=40 Participants
79 Participants
n=79 Participants
40 Participants
n=40 Participants
238 Participants
n=238 Participants
Race (NIH/OMB)
White
0 Participants
n=79 Participants
0 Participants
n=40 Participants
0 Participants
n=79 Participants
0 Participants
n=40 Participants
0 Participants
n=238 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=79 Participants
0 Participants
n=40 Participants
0 Participants
n=79 Participants
0 Participants
n=40 Participants
0 Participants
n=238 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=79 Participants
0 Participants
n=40 Participants
0 Participants
n=79 Participants
0 Participants
n=40 Participants
0 Participants
n=238 Participants
Child Mullen Scales Learning Composite
73.13 t-score
STANDARD_DEVIATION 12.09 • n=79 Participants • This measure is applicable to children only. Data were not collected from caregivers.
74.41 t-score
STANDARD_DEVIATION 11.13 • n=40 Participants • This measure is applicable to children only. Data were not collected from caregivers.
73.56 t-score
STANDARD_DEVIATION 11.74 • n=119 Participants • This measure is applicable to children only. Data were not collected from caregivers.
HOME score quality caregiving
64.88 score on a scale
STANDARD_DEVIATION 18.01 • n=79 Participants • This measure is applicable to children only. Data were not collected from caregivers.
69.30 score on a scale
STANDARD_DEVIATION 14.59 • n=40 Participants • This measure is applicable to children only. Data were not collected from caregivers.
66.36 score on a scale
STANDARD_DEVIATION 16.99 • n=119 Participants • This measure is applicable to children only. Data were not collected from caregivers.
Child Length for age z-score
-1.44 Z-score
STANDARD_DEVIATION 1.53 • n=79 Participants • This measure is applicable to children only. Data were not collected from caregivers.
-1.79 Z-score
STANDARD_DEVIATION 1.34 • n=40 Participants • This measure is applicable to children only. Data were not collected from caregivers.
-1.56 Z-score
STANDARD_DEVIATION 1.47 • n=119 Participants • This measure is applicable to children only. Data were not collected from caregivers.
Child weight-for-age z-score
-0.80 Z-score
STANDARD_DEVIATION 1.14 • n=79 Participants • This measure is applicable to children only. Data were not collected from caregivers.
-1.23 Z-score
STANDARD_DEVIATION 1.21 • n=40 Participants • This measure is applicable to children only. Data were not collected from caregivers.
-0.95 Z-score
STANDARD_DEVIATION 1.17 • n=119 Participants • This measure is applicable to children only. Data were not collected from caregivers.
Bradbury Cyanide level cassava flour
28.89 parts per million
STANDARD_DEVIATION 33.10 • n=79 Participants
22.03 parts per million
STANDARD_DEVIATION 24.39 • n=40 Participants
28.89 parts per million
STANDARD_DEVIATION 33.10 • n=79 Participants
22.03 parts per million
STANDARD_DEVIATION 24.39 • n=40 Participants
26.87 parts per million
STANDARD_DEVIATION 27.23 • n=238 Participants
Child urine thiocyanate
179.37 Micromol per Liter
STANDARD_DEVIATION 207.35 • n=79 Participants • This measure is applicable to children only. Data were not collected from caregivers.
227.57 Micromol per Liter
STANDARD_DEVIATION 193.85 • n=40 Participants • This measure is applicable to children only. Data were not collected from caregivers.
208.45 Micromol per Liter
STANDARD_DEVIATION 202.33 • n=119 Participants • This measure is applicable to children only. Data were not collected from caregivers.
Caregiver anxiety
3.29 score on a scale
STANDARD_DEVIATION 2.96 • n=79 Participants • This measure is applicable to caregivers only. Data were not collected from children.
3.35 score on a scale
STANDARD_DEVIATION 2.76 • n=40 Participants • This measure is applicable to caregivers only. Data were not collected from children.
3.31 score on a scale
STANDARD_DEVIATION 2.88 • n=119 Participants • This measure is applicable to caregivers only. Data were not collected from children.
Caregiver depression
3.01 score on a scale
STANDARD_DEVIATION 2.37 • n=79 Participants • This measure is applicable to caregivers only. Data were not collected from children.
2.38 score on a scale
STANDARD_DEVIATION 2.54 • n=40 Participants • This measure is applicable to caregivers only. Data were not collected from children.
2.80 score on a scale
STANDARD_DEVIATION 2.86 • n=119 Participants • This measure is applicable to caregivers only. Data were not collected from children.

PRIMARY outcome

Timeframe: Month 6, month 12

Population: Children

The Mullen Scales of Early Learning (MSEL) assesses child developmental domains: visual reception, gross motor skills, fine motor skills, receptive language, and expressive language. A composite t-score derived from standardized t-scores of the four domains (excluding gross motor) provides a measure of g, the general measure of fluid intelligence thought to underlie general cognitive ability. The composite t-score ranges from 40 to 130. The t-scores have mean 100 and standard deviation 15 in the Western population. Higher scores reflect better outcome. Measure is applicable to children only, not collected from caregivers

Outcome measures

Outcome measures
Measure
MISC and WTM, Children
n=79 Participants
Wetting method (WTM)+ Mediational Intervention for Sensitizing Caregivers (MISC) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months Mediational Intervention for Sensitizing Caregivers (MISC): The study team will use MISC to train DRC mothers in practical day-to-day activities with their children to enhance 5 key mediational processes: 1) focusing (getting the child's attention and engaging directing them to learning experiences); 2) exciting (communicating excitement, appreciation, and affection with the learning experience); 3) expanding (making the child aware of how the learning experience transcends the present situation and can include past and future issues beyond the immediate need of the moment); 4) encouraging (emotional support to foster the child's sense of security and competence); and 5) regulating (helping to direct the child's behavior in constructive ways with a goal towards self-regulation).
WTM Only, Children
n=40 Participants
WTM trainings only (recommended standard of care) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months
Mullen Scales of Early Learning (MSEL) Composite Score
Month 6
73.63 t-score
Standard Error 1.33
74.33 t-score
Standard Error 1.90
Mullen Scales of Early Learning (MSEL) Composite Score
Month 12
77.04 t-score
Standard Error 1.48
76.75 t-score
Standard Error 1.93

PRIMARY outcome

Timeframe: Month 6, month 12

Population: Children

Technicians collected samples of urine on the same day as child assessments, so that they are contiguous with level of cyanide exposure from current poorly processed cassava. Urine thiocyanite levels in urine were measured in micromol per liter. The range was 0-1032, higher scores reflect worse outcome. Data collected from children only, not collected from caregivers.

Outcome measures

Outcome measures
Measure
MISC and WTM, Children
n=79 Participants
Wetting method (WTM)+ Mediational Intervention for Sensitizing Caregivers (MISC) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months Mediational Intervention for Sensitizing Caregivers (MISC): The study team will use MISC to train DRC mothers in practical day-to-day activities with their children to enhance 5 key mediational processes: 1) focusing (getting the child's attention and engaging directing them to learning experiences); 2) exciting (communicating excitement, appreciation, and affection with the learning experience); 3) expanding (making the child aware of how the learning experience transcends the present situation and can include past and future issues beyond the immediate need of the moment); 4) encouraging (emotional support to foster the child's sense of security and competence); and 5) regulating (helping to direct the child's behavior in constructive ways with a goal towards self-regulation).
WTM Only, Children
n=40 Participants
WTM trainings only (recommended standard of care) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months
Child Urine Thiocyanite Level
Month 6
74.98 Micromol per Liter
Standard Error 13.94
139.00 Micromol per Liter
Standard Error 20.17
Child Urine Thiocyanite Level
Month 12
146.45 Micromol per Liter
Standard Error 14.36
108.91 Micromol per Liter
Standard Error 20.18

SECONDARY outcome

Timeframe: Month 6, month 12

Population: Children

Home Observation for the Measurement of the Environment (HOME) composite measure designed to assess the quality and quantity of stimulation that the child is exposed to in their home environment. The Infant/Toddler version includes 45 items answered on the scale from 0=none to 3=good. A total HOME score was generated by summing item responses. Potential range is 0 to 135. Higher HOME scores indicate higher quality of home environment. Measure applies to children only.

Outcome measures

Outcome measures
Measure
MISC and WTM, Children
n=79 Participants
Wetting method (WTM)+ Mediational Intervention for Sensitizing Caregivers (MISC) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months Mediational Intervention for Sensitizing Caregivers (MISC): The study team will use MISC to train DRC mothers in practical day-to-day activities with their children to enhance 5 key mediational processes: 1) focusing (getting the child's attention and engaging directing them to learning experiences); 2) exciting (communicating excitement, appreciation, and affection with the learning experience); 3) expanding (making the child aware of how the learning experience transcends the present situation and can include past and future issues beyond the immediate need of the moment); 4) encouraging (emotional support to foster the child's sense of security and competence); and 5) regulating (helping to direct the child's behavior in constructive ways with a goal towards self-regulation).
WTM Only, Children
n=40 Participants
WTM trainings only (recommended standard of care) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months
Home Observation for the Measurement of the Environment (HOME) Score
Month 6
69.37 score on a scale
Standard Error 1.70
67.61 score on a scale
Standard Error 2.42
Home Observation for the Measurement of the Environment (HOME) Score
Month 12
71.49 score on a scale
Standard Error 1.84
68.07 score on a scale
Standard Error 2.42

SECONDARY outcome

Timeframe: Month 6, month 12

Population: Children

Length for age z-score was determined using the World Health Organization algorithm using child's length, sex, and age at the time of measurement. The world population mean is 0 with standard deviation 1. Z-scores of -2 or below are often used to indicate stunting.

Outcome measures

Outcome measures
Measure
MISC and WTM, Children
n=79 Participants
Wetting method (WTM)+ Mediational Intervention for Sensitizing Caregivers (MISC) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months Mediational Intervention for Sensitizing Caregivers (MISC): The study team will use MISC to train DRC mothers in practical day-to-day activities with their children to enhance 5 key mediational processes: 1) focusing (getting the child's attention and engaging directing them to learning experiences); 2) exciting (communicating excitement, appreciation, and affection with the learning experience); 3) expanding (making the child aware of how the learning experience transcends the present situation and can include past and future issues beyond the immediate need of the moment); 4) encouraging (emotional support to foster the child's sense of security and competence); and 5) regulating (helping to direct the child's behavior in constructive ways with a goal towards self-regulation).
WTM Only, Children
n=40 Participants
WTM trainings only (recommended standard of care) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months
Child Physical Growth: Length for Age Z-score
Month 6
-1.72 z-score
Standard Error 0.09
-1.88 z-score
Standard Error 0.13
Child Physical Growth: Length for Age Z-score
Month 12
-1.57 z-score
Standard Error 0.10
-1.96 z-score
Standard Error 0.13

SECONDARY outcome

Timeframe: Month 6, month 12

Population: Children

Weight for age z-score was determined using the World Health Organization algorithm using child's length, sex, and age at the time of measurement. The world population mean is 0 with standard deviation 1.

Outcome measures

Outcome measures
Measure
MISC and WTM, Children
n=79 Participants
Wetting method (WTM)+ Mediational Intervention for Sensitizing Caregivers (MISC) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months Mediational Intervention for Sensitizing Caregivers (MISC): The study team will use MISC to train DRC mothers in practical day-to-day activities with their children to enhance 5 key mediational processes: 1) focusing (getting the child's attention and engaging directing them to learning experiences); 2) exciting (communicating excitement, appreciation, and affection with the learning experience); 3) expanding (making the child aware of how the learning experience transcends the present situation and can include past and future issues beyond the immediate need of the moment); 4) encouraging (emotional support to foster the child's sense of security and competence); and 5) regulating (helping to direct the child's behavior in constructive ways with a goal towards self-regulation).
WTM Only, Children
n=40 Participants
WTM trainings only (recommended standard of care) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months
Child Physical Growth: Weight for Age Z-score
Month 6
-1.54 z-score
Standard Error 0.12
-1.92 z-score
Standard Error 0.16
Child Physical Growth: Weight for Age Z-score
Month 12
-1.40 z-score
Standard Error 0.13
-2.10 z-score
Standard Error 0.16

SECONDARY outcome

Timeframe: Month 6, month 12

Population: Caregivers of children

The modified Hopkins Symptom Checklist was used to assess caregiver anxiety. The instrument included 9 yes/no items, and the item responses were summed into the total score. The potential range was 0-9 with higher score indicating worse anxiety. Measure applicable to caregiver only. Data were not collected from children.

Outcome measures

Outcome measures
Measure
MISC and WTM, Children
n=79 Participants
Wetting method (WTM)+ Mediational Intervention for Sensitizing Caregivers (MISC) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months Mediational Intervention for Sensitizing Caregivers (MISC): The study team will use MISC to train DRC mothers in practical day-to-day activities with their children to enhance 5 key mediational processes: 1) focusing (getting the child's attention and engaging directing them to learning experiences); 2) exciting (communicating excitement, appreciation, and affection with the learning experience); 3) expanding (making the child aware of how the learning experience transcends the present situation and can include past and future issues beyond the immediate need of the moment); 4) encouraging (emotional support to foster the child's sense of security and competence); and 5) regulating (helping to direct the child's behavior in constructive ways with a goal towards self-regulation).
WTM Only, Children
n=40 Participants
WTM trainings only (recommended standard of care) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months
Caregiver Anxiety Symptoms
Month 6
2.86 score on a scale
Standard Error 0.28
3.91 score on a scale
Standard Error 0.40
Caregiver Anxiety Symptoms
Month 12
2.80 score on a scale
Standard Error 0.30
3.74 score on a scale
Standard Error 0.41

SECONDARY outcome

Timeframe: Month 6, month 12

Population: Caregivers of children

The modified Hopkins Symptom Checklist was used to assess caregiver depressive symptoms. The instrument included 9 yes/no items, and the item responses were summed into the total score. The potential range was 0-9 with higher score indicating worse depressive symptoms. Measure applies to caregivers only, data were not collected from children.

Outcome measures

Outcome measures
Measure
MISC and WTM, Children
n=79 Participants
Wetting method (WTM)+ Mediational Intervention for Sensitizing Caregivers (MISC) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months Mediational Intervention for Sensitizing Caregivers (MISC): The study team will use MISC to train DRC mothers in practical day-to-day activities with their children to enhance 5 key mediational processes: 1) focusing (getting the child's attention and engaging directing them to learning experiences); 2) exciting (communicating excitement, appreciation, and affection with the learning experience); 3) expanding (making the child aware of how the learning experience transcends the present situation and can include past and future issues beyond the immediate need of the moment); 4) encouraging (emotional support to foster the child's sense of security and competence); and 5) regulating (helping to direct the child's behavior in constructive ways with a goal towards self-regulation).
WTM Only, Children
n=40 Participants
WTM trainings only (recommended standard of care) bi-weekly for 12 months. Wetting method (WTM): The wetting method is an evidence-based, simple process to remove cyanogens from cassava flour. It involves teaching women to add water to cassava flour and allow it to stand for 2 h in the sun or 5 h in the shade for the hydrogen cyanide gas to escape. Colorfully illustrated and durable laminated posters depicting the WTM will be distributed to participating households. Women will receive this training bi-weekly for 12 months
Caregiver Depressive Symptoms
Month 6
2.21 score on a scale
Standard Error 0.29
4.25 score on a scale
Standard Error 0.42
Caregiver Depressive Symptoms
Month 12
2.45 score on a scale
Standard Error 0.32
4.18 score on a scale
Standard Error 0.42

Adverse Events

MISC and WTM, Children

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

WTM Only, Children

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

MISC and WTM, Caregivers

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

WTM Only, Caregivers

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

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Michael J Boivin

Michigan State University

Phone: 1-517-884-0281

Results disclosure agreements

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