What Promotes Healthy Eating? The Roles of Information,Affordability,Accessibility,Gender, and Peers on Food Consumption

What Promotes Healthy Eating? The Roles of Information, Affordability, Accessibility, Gender, and Peers on Food Consumption

Pre-school undernutrition is a global problem with life long adverse consequences. One form of undernutrition, chronic undernutrition or stunting, affects 171 million children under the age of 5 worldwide. 35% of these children live in Africa. In Ethiopia, the focus of this study, in 2014, 44.5% of children under 5 were stunted. Stunting is the consequence of several factors including low birth weights, sub-optimal infant and complementary feeding practices and repeated illness. In Ethiopia, complementary feeding is sub-optimal; only 4% of children aged 6-24 months met the minimum dietary diversity recommended by WHO.

The investigators hypothesize four main reasons why many children and mothers in Ethiopia fall short of best practice in terms of meeting nutritional needs and providing appropriate childcare.

(i) Lack of information on healthy eating and appropriate child-feeding practices; (ii) Limited affordability; (iii) Limited accessibility to markets and diverse food items; and (iv) Limited peer effects in spreading information and adopting new practices.

This study will assess the efficacy of the interventions that address these four barriers to optimal complementary feeding practices in Ethiopia. Using a cluster randomized control design, mother-father-child pairs in two localities, Holeta and Ejere will be enrolled. Treatment will be randomized at the garee (village) level. There will be five treatment arms and a control group: T1, weekly maternal nutrition BCC sessions for four months; T2, weekly maternal nutrition BCC sessions for four months and weekly paternal nutrition BCC sessions for three months; T3, receipt of a food voucher for six months; T4, weekly maternal nutrition BCC sessions for four months and receipt of a food voucher for six months; T5 weekly maternal nutrition BCC sessions for four months and weekly paternal nutrition BCC sessions for three months and receipt of a food voucher for six months; and C, a control group. Within household, recipient of voucher (mother or father) will be randomly selected.

Study Overview

• Status: Completed
• Conditions: Malnutrition; Growth; Stunted Growth; Feeding, Complementary
• Intervention / Treatment: Behavioral: Behavior change communication; Other: Food Voucher (Monetary)

Detailed Description

1. Specific Aim of the study

   Aim 1: How does maternal behavior change communication (BCC) on healthy eating affect knowledge on child feeding, child feeding behavior, and nutritional status of the child? o Does BCC lead to changes in knowledge about healthy child-feeding and child-feeding behaviors?

   o Does the changes in child-feeding behaviors due to BCC lead to improvements in nutritional status among young children measured by height-for-age and weight-for-height?

   Aim 2: How do food vouchers affect food consumption and nutritional status?

   • Do vouchers lead to increased food consumption and dietary diversity?
   • Do vouchers crowd out private spending on food?
   • Does the increased food intake due to food vouchers lead to improvements in nutritional status among young children measured by height-for-age and weight-for-height?

   Aim 3: How does increased accessibility affect food consumption, child-feeding behavior and nutritional status?

   • By sending petty traders of various food items to randomly selected markets with limited access to diverse food groups, the investigators hypothesize that increased accessibility to diverse food items will lead to increased food consumption and dietary diversity.
   • Is there complementarity between accessibility and BCC or vouchers?

   Aim 4: Is there complementarity between BCC and food voucher? • The investigators will test whether there is a complementarity between BCC and food vouchers, as those receiving the BCC would make more informed decisions on food consumption.

   Aim 5: Are there peer effects in nutrition education and corresponding behavior change?

   o Within treatment groups: As low food diversity is in part due to eating norms in the community, the investigators will test to what extent peer effects within the treatment group will play a role in reinforcing nutritional knowledge and in changing household's food consumption decisions.

   o Outside the treatment groups (spillovers): The investigators hypothesize that mothers receiving BCC will affect eating behaviors of other household members and/or friends.

   Aim 6: How do variations in the prices of healthy food impact demand?

   o The investigators hypothesize that offering lower price options of healthy but expensive food such as meat would increase the demand for that food.

   o What are the price elasticity of demand for important food items? What is the maximum price households are willing to pay-i.e., the stoppage rule-for healthy food items?

   Aim 7: Is there additional impact of paternal and maternal nutrition BCC sessions on complementary feeding practice compared to maternal nutrition BCC sessions alone?

   o There will be greater improvement in complementary feeding practices when fathers are engaged in nutrition BCC sessions. Increased fathers' support on purchasing expensive but nutritious food items and household labor will facilitate the changes.

   Aim 8: Is there differential impact of voucher transfer on complementary feeding practices depending on recipient's gender?

   o The investigators will compare the effect of giving vouchers to fathers with giving vouchers to mothers on complementary feeding practices, food consumption of household, and health-related outcomes.

2. Detailed intervention component

   2.1 Maternal behavior change communication

   BCC will be delivered in groups of six through weekly sessions for a duration of 4 months. Key gaps in knowledge and barriers identified through formative studies are also addressed in the BCC modules.

   2.2 Paternal behavior change communication

   Materials will be delivered in groups of 6 through weekly sessions for the duration of 3 months.

   2.3 Food vouchers

   Food vouchers are transferred monthly at the Project Office in Holeta. Eligible participants will receive 200 ETB, estimated around US$10. The length of the voucher scheme will be 6 months. Voucher recipient's gender will be randomly selected within group 3, 4 and 5 to assess whether there is any differential impact on complementary feeding practices depending on the gender of voucher recipients.

   2.4 Access to healthy food

   For a random half of the treated and control groups, petty traders with diverse food items to their localities will be sent to increase accessibility. This is taking into consideration that some mothers, especially rural residents, have access a limited set of food items in the markets that they usually visit, lacking dairy products, meat, green leafy vegetables, and diverse fruits. To bridge this accessibility gap, petty traders will be sent to some selected markets with dairy products, meat, and various fruits and vegetables.

   2.5 Price variation of healthy foods

   The investigators will introduce variation in the prices of healthy foods that are sold through petty traders to estimate the impact of price on demand. Price variations will take the form of 10%, 20%, or 30% discounts. While price will be varied by each petty trader every time, average food prices over the 6-month intervention period will be the same among all petty traders.

3. Quality assurance plan

   o Baseline and follow up data will be collected through mobile-survey to minimize errors. Commcare software will be used to build mobile survey. Data collected through mobile survey will be checked for errors and missing data on a daily basis.

   • For some variables, predefined rule will be applied within Commcare software using data validation tools as the data are collected to prevent avoidable errors.
   • Principle investigator and co-investigators will take turn and monitor the field site during data collection stage (both baseline and follow up) and during early intervention stage to ensure data quality.
   • Baseline survey data will be compared to demographic and health survey data to assess the accuracy, completeness and representativeness of the data. However, for most variables, there are no external data sources to compare.
   • Data dictionary not relevant
   • For variable with missing data above 5%, the variable won't be used as control variables. For main outcome of interest, data will be checked for errors and missing data on a daily basis. The investigators will revisit the study participant to minimize missing data.

4. Standard Operating Procedures to address registry operations and analysis activities

   4.1 Patient recruitment

   The selection of the households that will be eligible to receive interventions will take place using the census data of Holeta and Ejere that was collected in 2016. To minimize potential contamination, control and treatment groups will be randomized at garee (village) level. Upon consent to participate in the study, mothers living in same garee will form a group to receive BCC education for mothers, and eligible spouse/partner of the participating mother will be recruited to form a group separately from mother to receive BCC for fathers.

   4.2 Consent process

   Women will be recruited from home visits by AFF's enumerators assigned to this study. Women will be approached by an AFF's enumerator from the study to see if they are interested in participating. All women in their reproductive age (18-40) will be informed about the details of the survey and asked to participate in the survey with the consent form. Enumerators will read all out the consent form before asking for signature. If they accept, enumerators will conduct the baseline survey, which consists of demographic and socioeconomic information.

   4.3 Survey data collection

   When eligible participants are identified, AFF enumerators will meet the participants at the health posts.

   4.4 Sample size assessment

   Minimum detectable difference for the cluster-randomized controlled trial was calculated. Intra-cluster coefficient was calculated using 2011 DHS data for HAZ, WHZ and child dietary diversity score (DDS). Minimum detectable difference was estimated with statistical significance of 0.05 and power of 0.8. Six mother-child pair per cluster was decided on the study area's estimates of birth rates, 50 numbers of clusters available for each arm. 10% attrition was assumed. Details of power calculation for main outcomes of interest are shown below.

   Detectable difference

   • DDS: 0.30 (Mean 1.5, SD 1.05, ICC 0.10)

   • HAZ: 0.51 (Mean -1.56, SD 1.75, ICC 0.12)
   • WHZ: 0.42 (Mean -0.80, SD 1.44, ICC 0.11)

   4.5 Statistical analysis

   • Estimation of treatment effects

   In this section, the investigators outline the basic estimation approach to measuring the effect of the treatments on various outcomes. Our basic treatment effects specification estimates the following equation:

   y= β₀ + β₁BCC + β₂Voucher+ β₃BCC&Voucher+ β₄X+ ε where y is the outcome of interest. BCC, Voucher, and BCC&Voucher are dummy variables equal to 1 if the participant was randomly assigned to the BCC, voucher group, or the BCC and voucher villages, respectively, and 0 otherwise. β₁, β₂ and β₃ represent the effect of being assigned to the specific treatment arm. X is a vector of individual's characteristics including demographic variables (e.g., age, marital status, birth order, and household size) and socioeconomic status (e.g., level of education, employment status/history, and household income and asset). ε is an error term. The outcome variable, y, include mother's nutritional knowledge score, household food and non-food expenditures, child's dietary diversity score and FCS, and child's height-for-age (HAZ) and weight-for-height Z scores (WHZ).

   To assess the gender-related impacts of engaging fathers in the BCC program, the investigators estimate the following equation:

   y= β₀ + β₁MotherBCC+ β₂BothBCC+ β₃MotherBCC&Voucher+ β₄BothBCC&Voucher+ β₅X+ ε where MotherBCC, BothBCC, MotherBCC&Voucher and BothBCC&Voucher are dummy variables equal to 1 if the household was randomly assigned to the mother BCC, mother and father BCC, mother BCC and voucher, or mother and father BCC and voucher villages, respectively, and 0 otherwise. β₁, β₂, β₃ and β₄ represent the treatment effects.

   To assess the differential impacts of randomly giving vouchers to mothers or fathers, a dummy variable representing the sex of the voucher recipient will be interacted with the voucher treatment assignment variable. Further, the investigators will implement the same analysis with a restricted sample by excluding BCC only villages.

   The investigators also have random variation in the accessibility to certain food items in the markets, as a random half of the participants are provided access to additional goods in the markets. To analyse the effect of increased accessibility on household expenditures and nutritional outcomes, the investigators estimate the following equation:

   y =α₀+α₁Access+α₂X+α₃P+ ε Where Access is a dummy variable equal to 1 if petty traders are randomly assigned to markets in village provide lacking food items such as meat, dairy products, and fruits and vegetables. P is a vector of food prices in village.

   Finally, the investigators use network data to estimate whether the treatment also influenced the outcomes of peers of the participants. The extent of such peer effects or information spillovers can be estimated with the following specification:

   y =α₀+α₁Peer+α₂X+ ε Where y is the outcome of interest for individual i with child less than four months of age or in pregnancy at the time of baseline survey. Peer is a dummy variable equal to 1 if respondent has a peer in cluster who is assigned to BCC or BCC and voucher treatment group.

• Study Type: Interventional
• Enrollment (Actual): 1243
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Ethiopia
  • Oromia
    • B/m/h/395/98, Goro Kerensa, Holeta Town, Oromia, Ethiopia
      • Africa Future Foundation Ethiopia

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Female: Women aged between 18-40 who is pregnant or have children 20 months or younger
• Male: Spouse/partner of the women recruited in the study (no age limit for fathers)
• Child of the women recruited in the study

Exclusion Criteria:

• Those who are not able to understand the consent form
• Those without the physical ability to come to the health post

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Factorial Assignment
• Masking: None (Open Label)

Number of Arms

6

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
No Intervention: Control; Control group
Experimental: Maternal BCC only; Mothers with child under 20 months or pregnant will receive Behavior Change Communication (BCC)	Behavioral: Behavior change communication; Weekly behavior change communication (BCC) to mothers for the duration of 16 weeks Weekly behavior change communication (BCC) to fathers for the duration of 12 weeks
Experimental: Maternal BCC & Paternal BCC; Mothers with child under 20 months or pregnant will receive BCC; Husband/partner of the enrolled mother will receive BCC *BCC: Behavior Change Communication	Behavioral: Behavior change communication; Weekly behavior change communication (BCC) to mothers for the duration of 16 weeks Weekly behavior change communication (BCC) to fathers for the duration of 12 weeks
Experimental: Food voucher; Mothers or fathers with child under 20 months or pregnant will receive monthly food voucher worth 200 birr(~$10); Within household, recipient of voucher (mother or father) will be randomly selected.Food voucher	Other: Food Voucher (Monetary); Monthly voucher worth 200 birr(~$10) every month for the duration of 6 month
Experimental: Maternal BCC & Food Voucher; Mothers with child under 20 months or pregnant will receive BCC; Mothers or fathers with child under 20 months or pregnant will receive monthly food voucher worth 200 birr(~$10); Within household, recipient of voucher (mother or father) will be randomly selected.BCC: Behavior Change Communication	Behavioral: Behavior change communication; Weekly behavior change communication (BCC) to mothers for the duration of 16 weeks Weekly behavior change communication (BCC) to fathers for the duration of 12 weeks; Other: Food Voucher (Monetary); Monthly voucher worth 200 birr(~$10) every month for the duration of 6 month
Experimental: Maternal BCC&Paternal BCC &Food Voucher; Mothers with child under 20 months or pregnant will receive BCC; Husband/partner of the enrolled mother will receive BCC; Enrolled participants will receive monthly voucher worth 200 birr(~$10); Within household, recipient of voucher (mother or father) will be randomly selected.BCC: Behavior Change Communication	Behavioral: Behavior change communication; Weekly behavior change communication (BCC) to mothers for the duration of 16 weeks Weekly behavior change communication (BCC) to fathers for the duration of 12 weeks; Other: Food Voucher (Monetary); Monthly voucher worth 200 birr(~$10) every month for the duration of 6 month

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Nutrition knowledge	Mean difference of nutrition knowledge score	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.
Child dietary diversity score	Mean difference in child dietary diversity score defined by consumption of number of food group consumed by a child.	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.
Food consumption score	Mean difference in food consumption score calculated using the frequency of consumption of different food groups consumed by a child.	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in length-for-age Z scores	Difference between the treatment and control arms in the mean change in length-for-age Z scores	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.
Change in weight-for-height Z scores	Difference between the treatment and control arms in the mean change in weight-for-height Z scores	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.
Mid-Upper Arm Circumference	Difference between the treatment and control arms in the mean change in Mid-Upper Arm Circumference	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.
Social support actions of father	Difference between the treatment and control arms in the mean score of social support actions of father as assessed in the follow-up questionnaire	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Household hygiene environment and practice	Difference between the treatment and control arms in the mean of social support actions of father as assessed by the follow-up survey questions	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.
Minimum dietary diversity	Difference between the treatment and control arms in the proportion of children who receive foods from 4 or more food groups	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.
Minimum meal frequency	Difference between the treatment and control arms in the proportion of breastfed and non-breastfed children who receive solid, semi-solid, or soft foods (but also including milk feeds for non-breastfed children) the minimum number of times or more (i.e. 2 for 6-8 mo., 3 for 9-23 mo., 4 for 6-23 mo. (if not breast feeding)).	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.
Minimum acceptable diet	Difference between the treatment and control arms in the proportion of children who had both minimum meal frequency and dietary diversity (in both breast feeding and non-breast feeding children).	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.
Intrahousehold decision making between the husband and wife	Difference between the treatment and control arms in the mean score of intrahousehold decision making	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.
Household labor allocation	Difference between the treatment and control arms in the mean score of the household labor allocation as assessed by the follow-up survey questions	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.
Communication with partner	Difference between the treatment and control arms in the mean score of the household labor allocation as assessed by the follow-up survey questions	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.
Gender norm attitudes	Difference between the treatment and control arms in the mean score of the gender norm attitudes as assessed by the follow-up survey questions	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.
Perceived social support of mothers	Difference between the treatment and control arms in the mean score of the social support scale as assessed by the follow-up survey questions	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.
Change in mother's weight circumference	Difference between the treatment and control arms in the mean of mother's weight circumference	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.
Household food and non-food consumption patterns	Change in consumption patterns of the households	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.
Food security measures	Change in food security measures	Measured at baseline and endline. Time frame between baseline and endline will be approximately 6 months.

Collaborators and Investigators

• Sponsor: Cornell University
• Collaborators: Africa Future Foundation
• Investigators: Principal Investigator: Hyuncheol Kim, Cornell University

Study record dates

Study Major Dates

• Study Start (Actual): June 25, 2017
• Primary Completion (Actual): March 31, 2018
• Study Completion (Actual): June 30, 2018

Study Registration Dates

• First Submitted: July 2, 2017
• First Submitted That Met QC Criteria: July 22, 2017
• First Posted (Actual): July 25, 2017

Study Record Updates

• Last Update Posted (Actual): March 22, 2022
• Last Update Submitted That Met QC Criteria: March 8, 2022
• Last Verified: March 1, 2022

More Information

Terms related to this study

• Keywords: Ethiopia; gender; Food voucher; accessibility; Behavior change communication; complementary feeding practice; affordability
• Additional Relevant MeSH Terms: Pathologic Processes; Nutrition Disorders; Malnutrition; Growth Disorders
• Other Study ID Numbers: EWEDP healthy eating

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED
• IPD Plan Description: Undecided

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No