Journal
CHILDHOOD OBESITY
Volume 12, Issue 2, Pages 103-112Publisher
MARY ANN LIEBERT, INC
DOI: 10.1089/chi.2015.0073
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Funding
- State Board of Education of North Carolina
- Blue Cross and Blue Shield of North Carolina Foundation
- Robert Wood Johnson Foundation Physician Faculty Scholar Award Program
- school system personnel
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Background: Motivating Adolescents with Technology to CHOOSE Health (TM) (MATCH) has been provided for eight years in North Carolina middle schools with high obesity prevalence. Methods: Seventh grade teachers in two schools delivered MATCH lessons in 2009, with one control school. In 2013 students were remeasured and completed a health behavior survey. Outcomes include BMI, BMI z-score (zBMI), weight category, and self-reported behaviors. Comparisons used t tests (continuous measures), Fisher's exact test (categorical measures), and linear mixed models (trend between groups). Results: Of original participants, 104/189 (55%) of MATCH and 117/173 (68%) of control were remeasured. In the control group, retained participants had lower baseline BMI and were higher percent white. Among all participants, zBMI decreased in MATCH (mean change -0.15 with SD = 0.60) and increased in control (mean change 0.04 with SD = 0.52); between groups p = 0.02. In mixed models for the all overweight subgroup, MATCH had a downward trend in zBMI over time that was significantly different from control (slope MATCH -0.0036 versus control 0.0009; p = 0.01). For shifts in weight category: incidence of obesity was lower in MATCH (13%) versus control (39%); remission of overweight to healthy weight was greater in MATCH (40%) versus control (26%). MATCH participants self-reported lower frequency of intake of sweetened beverages and snacks and hours of weekday TV time than control students. Conclusions: MATCH participation can result in long-term prevention of obesity compared to control, with differences in self-reported health behavior changes to support an underlying mechanism for the observed BMI differences.
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