Trial reportAmerican journal of health promotion : AJHP2021
Heterogeneity in the Effects of Food Vouchers on Nutrition Among Low-Income Adults: A Quantile Regression Analysis.
Trial report in American journal of health promotion : AJHP, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
7 citing papers in PubMed, 8 citations in OpenAlex.
- Causal Forests in Practice: Lessons on Detecting Heterogeneous Treatment Effects in a Randomized Controlled Trial of a Healthy Food Subsidy Program in Canada.The Journal of nutrition · 2026Trial
- Employees' Baseline Food Choices and the Effect of a Workplace Intervention to Promote Healthy Eating: Secondary Analysis of the ChooseWell 365 Randomized Controlled Trial.Journal of the Academy of Nutrition and Dietetics · 2023Trial
- The Effect of Food Vouchers and an Educational Intervention on Promoting Healthy Eating in Vulnerable Families: A Pilot Study.Nutrients · 2022Trial
- An environmental scan of financial incentives to increase access to healthy foods: How, how much, and how often?BMC public health · 2025Article
- The evolution and scope of Medicaid Section 1115 demonstrations to address nutrition: a US survey.Health affairs scholar · 2024Article
- Impact of Produce Prescriptions on Diet, Food Security, and Cardiometabolic Health Outcomes: A Multisite Evaluation of 9 Produce Prescription Programs in the United States.Circulation. Cardiovascular quality and outcomes · 2023Article
- Evaluation of a Produce Prescription Program for Patients With Diabetes: A Longitudinal Analysis of Glycemic Control.Diabetes care · 2023Article
Corrections and comments
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Authors and funding
7 authors at 5 institutions in 1 country.
Funding
Abstract
purposeTo determine whether baseline fruit and vegetable (FV) intake or other predictors are associated with response to food vouchers (change in FV intake) among low-income adults.
designSecondary analysis of a randomized, 2 x 2-factorial, community-based trial.
settingSan Francisco, California. SUBJECTS: 359 low-income adults aged ≥21 years old.
interventionParticipants were mailed $20 of food vouchers monthly for 6 months, and randomized to 1 of 4 arms according to: eligible foods (FV only or any foods) and redemption schedule (weekly or monthly). MEASURES: Change in FV intake measured in cup equivalents between baseline and month 6 of the trial, based on 24-hour dietary recalls. ANALYSIS: Quantile multivariate regressions were employed to measure associations between key predictors and change in FV intake across study arms.
resultsFV-only weekly vouchers were associated with increased FV intake at the 25th percentile (0.24 cups/day,
conclusionResponse to food vouchers varied along the FV intake distribution, pointing to some more responsive groups and others potentially needing additional support to increase FV intake. Larger households likely need vouchers of higher dollar value to result in similar changes in dietary intake as that observed in smaller households.
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Registered trials
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