Estimates of the school fruit and vegetable subscription program (paid versus not paid) on BMI_SDS, OW/OB, WC, and WtHR at 8.5 years, stratified by highest parental education level.

(a) BMI_SDS; (b) OW/OB; (c) WC; (d) WtHR. Results are presented by cohort (including pooled) and parental education for each model. Expressed as the difference in outcome or OR versus the counterfactual (as estimated using the NFFV schools without the subscription program) with 95% CI. The p-values are from a Wald test of the interaction between parental education and the subscription program. Analysis of BMI_SDS and OW/OB: Pooled models include terms for cohort (intercept and slope). Adjusted models include region and population density (all intercept and slope). +Pre-intervention adjusted models additionally include adjustment for BMI_SDS prior to the intervention. Analysis of WC and WtHR: Outcomes are from grade 3 only. Pooled models include a term for cohort. Adjusted models include region and population density. BMI_SDS, body mass index standard deviation score; NFFV, no free fruit and vegetable; OR, odds ratio; OW/OB, overweight and obesity; WC, waist circumference; WtHR, waist to height ratio.

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