Promoting homestead gardens to improve dietary diversity in Rural India: a randomized controlled trial

ISRCTN ISRCTN79401136
DOI https://doi.org/10.1186/ISRCTN79401136
Secondary identifying numbers CARE USA US3J3/ANO5US0002/8
Submission date
21/05/2024
Registration date
28/05/2024
Last edited
20/11/2024
Recruitment status
No longer recruiting
Overall study status
Ongoing
Condition category
Nutritional, Metabolic, Endocrine
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Many people in rural India suffer from poor nutrition because they cannot afford or otherwise do not have access to a full range of food groups. While backyard gardens could produce crops to supplement existing diets, irrigation water is often unavailable during growing seasons - a barrier that will be aggravated by climate change. This study aims to test an intervention designed to increase the consumption of a wider range of foods by promoting backyard gardens irrigated with “grey water” - relatively clean wastewater from dishwashing and bathing.

Who can participate?
Households in 82 communities in Ganjam and Gajapati Districts of Odisha, India

What does the study involve?
Half of the communities will be randomly assigned to receive the intervention. The intervention includes community activities designed to build awareness and capacity, as well as the provision of seeds, fencing, irrigation equipment and pest-control strategies. The intervention will be delivered by Gram Vikas, an Indian NGO. The other communities will initially serve as controls and will be offered the intervention at the end of the 12-month trial. Dietary diversity is assessed by recording the number of food groups consumed in the previous day based on a 24-hour dietary recall.

What are the possible benefits and risks of participating?
Not provided at time of registration

Where is the study run from?
Emory University (USA)

When is the study starting and how long is it expected to run for?
January 2024 to December 2025

Who is funding the study?
CARE USA

Who is the main contact?
Dr Sheela Sinharoy, Sheela.sinharoy@emory.edu

Contact information

Dr Sheela Sinharoy
Public, Scientific, Principal Investigator

1518 Clifton Rd NE
Atlanta
30322
United States of America

ORCiD logoORCID ID 0000-0003-3077-3824
Phone +1 (0)404 778 2017
Email sheela.sinharoy@emory.edu
Dr Thomas Clasen
Scientific, Principal Investigator

1518 Clifton Rd NE
Atlanta
30322
United States of America

ORCiD logoORCID ID 0000-0003-4062-5788
Phone +1 (0)404 727 3480
Email thomas.f.clasen@emory.edu

Study information

Study designNon-blinded cluster-randomized controlled trial
Primary study designInterventional
Secondary study designCluster randomised trial
Study setting(s)Community
Study typePrevention
Scientific titleClimate Resilient Odisha Produce Study (CROPS): a randomized controlled trial in rural Odisha, India
Study acronymCROPS
Study objectivesIndividuals living in households that receive the intervention will have significantly higher dietary diversity than individuals living in households that do not receive the intervention.
Ethics approval(s)

1. Approved 15/04/2024, Emory University IRB (1599 Clifton Rd NE, Atlanta, 30322, United States of America; +1 (0)404 727 3889; irb@emory.edu), ref: STUDY00007613

2. Approved 20/05/2024, Independent Ethics Committee of XIM University (Plot No.12(A), Nijigada, Kurki, Harirajpur, Puri, Odisha, 752050, India; +91 (0)674 23777000; deansgpa@xim.edu.in), ref: XU2024520212VC

Health condition(s) or problem(s) studiedDietary diversity
InterventionCurrent interventions as of 12/09/2024:
Following enrollment and baselining of study participants, the 82 rural villages in Ganjam and Gajapati Districts in Odisha will be randomized using a random number generator either to the intervention arm (41 communities) or the control arm (41 communities).

Intervention arm:
1. Community meetings/trainings to:
1.1. Build knowledge, skills, and self-efficacy related to climate-smart agricultural techniques for year-round production of fruits and vegetables through backyard gardens
1.2. Improve knowledge of the importance of dietary diversity for all household members and self-efficacy related to food preparation and distribution
1.3. Increase women’s negotiating and decision-making power in the household
2. Distribution of inputs and hardware including seeds and seedlings, supplies for integrated pest management (e.g., fencing material), and hardware for greywater capture and re-use (e.g., PVC pipes, watering cans)

Control arm:
No intervention (offered the intervention at the end of the 12-month trial)

The trial will continue for a period of approximately 18 months from June 2024 to December 2025. The study protocol and ethics approvals authorize additional follow-up for up to 24 months following the completion of the trial to assess longer-term impacts.




Previous interventions:
Following enrollment and baselining of study participants, the 90 rural villages in Ganjam and Gajapati Districts in Odisha will be randomized using a random number generator either to the intervention arm (45 communities) or a control arm (45 communities).

Intervention arm:
1. Community meetings/trainings to:
1.1. Build knowledge, skills, and self-efficacy related to climate-smart agricultural techniques for year-round production of fruits and vegetables through backyard gardens
1.2. Improve knowledge of the importance of dietary diversity for all household members and self-efficacy related to food preparation and distribution
1.3. Increase women’s negotiating and decision-making power in the household
2. Distribution of inputs and hardware including seeds and seedlings, supplies for integrated pest management (e.g., fencing material), and hardware for greywater capture and re-use (e.g., PVC pipes, watering cans)

Control arm:
No intervention (offered the intervention at the end of the 12-month trial)

The trial will continue for a period of approximately 18 months from June 2024 to December 2025. The study protocol and ethics approvals authorize additional follow-up for up to 24 months following the completion of the trial to assess longer-term impacts.
Intervention typeMixed
Primary outcome measureDietary diversity among adult women of reproductive age (18-49 years) is measured using a 24-hour dietary recall at baseline, 6 months, 12 months and 18 months
Secondary outcome measuresCurrent secondary outcome measures as of 12/09/2024:
1. Dietary diversity among children under age 5 and other household members measured using a 24-hour dietary recall at baseline, 6 months, 12 months and 18 months
2. Food insecurity measured using the Food Insecurity Experience Scale (FIES) at baseline, 6 months, 12 months, and 18 months
3. Subjective wellbeing measured using the World Health Organization-5 (WHO-5) scale at baseline, 6 months, 12 months and 18 months
4. Self-efficacy measured using researcher-developed questions specific to self-efficacy for gardening and self-efficacy related to nutrition at baseline, 6 months, 12 months and 18 months
5. Women’s empowerment measured using questions adapted from the project-level Women’s Empowerment in Agriculture Index at baseline, 6 months, 12 months and 18 months




Previous secondary outcome measures:
1. Dietary diversity among children under age 5 measured using a 24-hour dietary recall at baseline, 6 months, 12 months and 18 months
2. Food insecurity measured using the Food Insecurity Experience Scale (FIES) at baseline, 6 months, 12 months, and 18 months
3. Subjective wellbeing measured using the World Health Organization-5 (WHO-5) scale at baseline, 6 months, 12 months and 18 months
4. Self-efficacy measured using researcher-developed questions specific to self-efficacy for gardening and self-efficacy related to nutrition at baseline, 6 months, 12 months and 18 months
5. Women’s empowerment measured using questions adapted from the project-level Women’s Empowerment in Agriculture Index at baseline, 6 months, 12 months and 18 months
Overall study start date01/01/2024
Completion date31/12/2025

Eligibility

Participant type(s)Population
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants2050: Up to 25 households in each of up to 82 communities (41 intervention/41 control)
Key inclusion criteriaCurrent participant inclusion criteria as of 12/09/2024:
Intervention: Adults 18 years and older who live in the study area in Odisha, India

Evaluation: Households in 82 communities in Ganjam and Gajapati Districts of Odisha, India



Previous participant inclusion criteria:
Intervention: Adults 18 years and older who live in the study area in Odisha, India

Evaluation: Households with a child aged under 5 years (up to 25 households, one adult woman and one adult man per household) in each of the intervention and control villages
Key exclusion criteria1. Adults unable to consent
2. Individuals who do not meet age requirements
3. Prisoners
4. Cognitively impaired or individuals with Impaired Decision-Making Capacity
Date of first enrolment31/05/2024
Date of final enrolment31/12/2024

Locations

Countries of recruitment

  • India

Study participating centres

Gram Vikas, a Non-Governmental Organization registered in India under the Societies Registration Act 1860
Plot No. 72/B
Forest Park, Bhubaneswar
Odisha
751009
India
Ganjam and Gajapati Districts
Odisha
N/A
India

Sponsor information

CARE USA
Charity

151 Ellis St NE
Atlanta
30303
United States of America

Phone +1 (0)800 422 7385
Email info@care.org
ROR logo "ROR" https://ror.org/038espn32

Funders

Funder type

Charity

CARE USA

No information available

Results and Publications

Intention to publish date31/12/2028
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryData sharing statement to be made available at a later date
Publication and dissemination planThe results may be shared in a dissemination/consultation workshop with stakeholders, at presentations at national and international conferences, and in manuscripts published as pre-prints and in peer-reviewed journals.
IPD sharing planThe data-sharing plans for the current study are unknown and will be made available at a later date.

Editorial Notes

20/11/2024: The Recruitment end date was changed from 30/11/2024 to 31/12/2024.
12/09/2024: The following changes were made:
1. The interventions were changed.
2. The secondary outcome measures were changed.
3. The participant inclusion criteria were changed.
4. The target number of participants was changed from "2250: Up to 25 households in each of up to 90 communities (45 intervention/45 control)".
5. The recruitment end date was changed from 30/09/2024 to 30/11/2024.
6. The plain English summary was updated to reflect the above changes.
31/05/2024: The recruitment start date was changed from 01/06/2024 to 31/05/2024.
28/05/2024: Study's existence confirmed by Emory University IRB.