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Design and participant characteristics of TX sprouts: A school-based cluster randomized gardening, nutrition, and cooking intervention.

ABSTRACT: AIMS:To outline the study design, outcome measures, protocol and baseline characteristics of enrolled participants of Texas (TX) Sprouts, a one-year school-based gardening, nutrition, and cooking cluster randomized trial. METHODS:Eight schools were randomly assigned to the TX Sprouts intervention and eight schools to the delayed intervention over three years (2016-2019). The intervention arm received: formation/training of Garden Leadership Committees; a 0.25-acre outdoor teaching garden; 18 student lessons including gardening, nutrition, and cooking activities, taught weekly during school hours by hired educators throughout one school year; and nine parent lessons taught monthly to families. The delayed intervention was implemented the following academic year and received the same protocol as the intervention arm. Primary outcomes included: dietary intake, dietary-related behaviors, obesity, and metabolic parameters. Child measures included: height, weight, waist circumference, body composition, blood pressure, and dietary psychosocial variables. A subsample of children were measured for glucose, hemoglobin-A1C, and 24-hour dietary recalls. Parent measures included: height and weight, dietary intake, and related dietary psychosocial variables. RESULTS:Of the 4239 eligible students, 3137 students consented and provided baseline clinical measures; 3132 students completed child surveys, with 92% of their parents completing parent surveys. The subsamples of blood draws and dietary recalls were 34% and 24%, respectively. Intervention arm baseline descriptives, clinical and dietary data for children and parents are reported. CONCLUSION:The TX Sprouts intervention targeted primarily low-income Hispanic children and their parents; utilized an interactive gardening, nutrition, and cooking program; and measured a battery of dietary behaviors, obesity and metabolic outcomes.

SUBMITTER: Davis J

PROVIDER: S-EPMC7587328 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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Design and participant characteristics of TX sprouts: A school-based cluster randomized gardening, nutrition, and cooking intervention.

Davis JaimieN J Nikah Katie K Asigbee Fiona M FM Landry Matthew J MJ Vandyousefi Sarvenaz S Ghaddar Reem R Hoover Amy A Jeans Matthew M Pont Stephen J SJ Richards Daphne D Hoelscher Deanna M DM Van Den Berg Alexandra E AE Bluestein Meagan M Pérez Adriana A

Contemporary clinical trials 20190823

<h4>Aims</h4>To outline the study design, outcome measures, protocol and baseline characteristics of enrolled participants of Texas (TX) Sprouts, a one-year school-based gardening, nutrition, and cooking cluster randomized trial.<h4>Methods</h4>Eight schools were randomly assigned to the TX Sprouts intervention and eight schools to the delayed intervention over three years (2016-2019). The intervention arm received: formation/training of Garden Leadership Committees; a 0.25-acre outdoor teaching ...[more]

PMID: 31449880

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Project description:BackgroundAlthough school garden programs have been shown to improve dietary behaviors, there has not been a cluster-randomized controlled trial (RCT) conducted to examine the effects of school garden programs on obesity or other health outcomes. The goal of this study was to evaluate the effects of a one-year school-based gardening, nutrition, and cooking intervention (called Texas Sprouts) on dietary intake, obesity outcomes, and blood pressure in elementary school children.MethodsThis study was a school-based cluster RCT with 16 elementary schools that were randomly assigned to either the Texas Sprouts intervention (n?=?8 schools) or to control (delayed intervention, n?=?8 schools). The intervention was one school year long (9?months) and consisted of: a) Garden Leadership Committee formation; b) a 0.25-acre outdoor teaching garden; c) 18 student gardening, nutrition, and cooking lessons taught by trained educators throughout the school-year; and d) nine monthly parent lessons. The delayed intervention was implemented the following academic year and received the same protocol as the intervention arm. Child outcomes measured were anthropometrics (i.e., BMI parameters, waist circumference, and body fat percentage via bioelectrical impedance), blood pressure, and dietary intake (i.e., vegetable, fruit, and sugar sweetened beverages) via survey. Data were analyzed with complete cases and with imputations at random. Generalized weighted linear mixed models were used to test the intervention effects and to account for clustering effect of sampling by school.ResultsA total of 3135 children were enrolled in the study (intervention n?=?1412, 45%). Average age was 9.2?years, 64% Hispanic, 47% male, and 69% eligible for free and reduced lunch. The intervention compared to control resulted in increased vegetable intake (+?0.48 vs. +?0.04 frequency/day, p?=?0.02). There were no effects of the intervention compared to control on fruit intake, sugar sweetened beverages, any of the obesity measures or blood pressure.ConclusionWhile this school-based gardening, nutrition, and cooking program did not reduce obesity markers or blood pressure, it did result in increased vegetable intake. It is possible that a longer and more sustained effect of increased vegetable intake is needed to lead to reductions in obesity markers and blood pressure.Clinical trials numberNCT02668744 .

Dataset Information

Design and participant characteristics of TX sprouts: A school-based cluster randomized gardening, nutrition, and cooking intervention.

Publications

Design and participant characteristics of TX sprouts: A school-based cluster randomized gardening, nutrition, and cooking intervention.

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