DELIVER Evaluation in Nigeria

NCT06927674 | Recruiting

• 1 other identifier: 424607
• Study Type: interventional
• Target: 1,568
• Locations: 1 country
• Sites: 1

Brief Summary

The DEcent LIVelihoods for small-scale producers delivered through Economic \& Resilient food systems in Nigeria (DELIVER) (2024-2027) project is designed to address the low per capita consumption of vegetables and variety of vegetable consumption in northern Nigeria by working with smallholder farmers to increase production and promoting healthier diets through greater vegetable consumption among farmers and their neighbors. The objective of this evaluation is to assess the effectiveness of GAIN's DELIVER program for increasing the quantity and variety of vegetables consumed by smallholder farmer households participating in the program and by neighbor households. This evaluation will use a quasi-experimental design to assess the impact of GAIN's DELIVER programs on the quantity and diversity of vegetables consumed by smallholder farmers and non-farming neighbor households. The evaluation will be guided by the RE-AIM (reach, effectiveness, adoption, implementation, maintenance) framework. RE-AIM is a framework that is useful for evaluating the program impact of multifaceted and multilevel interventions.

Conditions

Quantity and Variety of Vegetables Consumed

Keywords

diet; vegetables; market intervention; Nigeria; agricultural production intervention; demand generation intervention

Outcome Measures

Primary Outcomes (2)

• Quantity of vegetables consumed

  Change in the mean grams of vegetables consumed in the previous 24 hours by farmer and neighbor households

  Baseline (April 2025), Endline (April 2027) (2 years)

• Variety of vegetables consumed

  Change in the number of types of vegetables consumed by farmer and non-farming neighbor households

  Baseline (April 2025), Endline (April 2027) (2 years)

Study Arms (1)

Intervention

OTHER

Behavioral: Consumption of vegetables

Interventions

Consumption of vegetables BEHAVIORAL

DELIVER is designed to address challenges of low consumption of vegetables in both variety and quantity by working with smallholder farmers to increase production and promoting healthier diets through greater vegetable consumption. The project will build the capacity of smallholder farmers in vegetable production through collaborating with lead farmers to establish demonstration plots that showcase advanced agricultural techniques and technologies. These plots will serve as training hubs for other farmers in vegetable production, postharvest handling, as well as business and market planning. DELIVER aims to increase consumption among neighbors of the smallholder farmers by asking the farmers to recruit at least one neighbor family to whom they will regularly sell vegetables. The project also includes a livelihood component that will increase market connections and access to finance for smallholder farmers.

Intervention

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Farmer household member or neighbor household recruited by DELIVER farmer
• Located within the intervention LGA
• Farmer must be a member who is participating in the DELIVER project
• Adult who is ≥ 18 years old
• Able to speak English or Hausa
• Provide informed consent to participate in the study

Sponsors & Collaborators

• RTI International: lead
• Datametrics Associates Ltd: collaborator
• University of Nigeria Nsukka: collaborator
• University of Abuja: collaborator

Study Sites (1)

Datametrics Associates Ltd.

Abuja, Nigeria

RECRUITING

MeSH Terms

Interventions

Vegetables

Intervention Hierarchy (Ancestors)

Food; Diet, Food, and Nutrition; Physiological Phenomena; Food and Beverages

Study Officials

• Abiodun F. Ipadeola, PhD

  Datametrics Associates Ltd

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Valerie Flax, PhD, MPH

CONTACT

(919) 541-6000; vflax@rti.org

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: OTHER
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Senior Research Public Health Analyst

Model Details: This evaluation will use a quasi-experimental design to assess the impact of GAIN's DELIVER program on the quantity and diversity of vegetables consumed by smallholder farmers and neighbor households. Smallholder farmers and neighbor households will be randomly selected from lists compiled by GAIN in 4 program LGAs (2 in Kano, 2 in Kaduna). The household-level impacts of the intervention will be assessed through panel surveys in intervention LGAs at baseline and endline in two groups: (1) new smallholder farmers and (2) neighbors who are not involved in the vegetable gardening project.

Study Record Dates

• First Submitted: April 7, 2025
• First Posted: April 15, 2025
• Study Start: May 12, 2025
• Primary Completion (Estimated): May 31, 2027
• Study Completion (Estimated): May 31, 2027
• Last Updated: June 4, 2025

Record last verified: 2025-05

Data Sharing

• IPD Sharing: Will share

Locations

NG (1)