DELIVER Evaluation in Nigeria

Evaluation of the Global Alliance for Improved Nutrition (GAIN) DEcent LIVelihoods for Small-scale Producers Delivered Through Economic & Resilient Food Systems (DELIVER) Project in Nigeria

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.

Study Overview

• Status: Recruiting
• Conditions: Quantity and Variety of Vegetables Consumed
• Intervention / Treatment: Behavioral: Consumption of vegetables

• Study Type: Interventional
• Enrollment (Estimated): 1568
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Valerie Flax, PhD, MPH; Phone Number: (919) 541-6000; Email: vflax@rti.org

Study Locations

• Nigeria
  • Abuja, Nigeria
    • Recruiting
    • Datametrics Associates Ltd.
    • Principal Investigator: Valerie Flax, PhD, MPH
    • Principal Investigator: Rufina Ayogu
    • Principal Investigator: Moradeyo Otitoju
    • Contact: Abiodun F. Ipadeola, PhD; Phone Number: +234 806 447 0614; Email: Abiodun.ipadeola@datametricsnigeria.com
    • Principal Investigator: Abiodun F. Ipadeola, PhD

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• 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

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Other: Intervention

Behavioral: Consumption of vegetables; 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.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
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)

Collaborators and Investigators

• Sponsor: RTI International
• Collaborators: University of Abuja; Datametrics Associates Ltd; University of Nigeria Nsukka
• Investigators: Principal Investigator: Abiodun F. Ipadeola, PhD, Datametrics Associates Ltd

Study record dates

Study Major Dates

• Study Start (Actual): May 12, 2025
• Primary Completion (Estimated): May 31, 2027
• Study Completion (Estimated): May 31, 2027

Study Registration Dates

• First Submitted: April 7, 2025
• First Submitted That Met QC Criteria: April 7, 2025
• First Posted (Actual): April 15, 2025

Study Record Updates

• Last Update Posted (Actual): June 4, 2025
• Last Update Submitted That Met QC Criteria: May 30, 2025
• Last Verified: May 1, 2025

More Information

Terms related to this study

• Keywords: vegetables; diet; Nigeria; market intervention; agricultural production intervention; demand generation intervention
• Other Study ID Numbers: 424607

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES
• IPD Plan Description: Dataset will be shared through Nesstar.

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No