Abstract
BACKGROUND: Childhood obesity is a critical public health concern. One potential determinant to obesity that is less understood is food insecurity. OBJECTIVE: To examine the association of food security status on body mass index (BMI) change in a Pediatric Weight Management Intervention (PWMI) consistent with national treatment recommendations. METHODS: This analysis included 201 participants from the Healthy Weight Clinic (HWC). Using linear mixed models, we compared BMI and %BMIp(95) change per year between the food insecure group and food secure group, adjusting for baseline BMI, age and sex, and SNAP enrolment. RESULTS: In fully adjusted models, children in households with food insecurity had a 0.50 (0.26-0.74) kg/m(2) BMI increase per year and a 2.10 (1.02-3.19) %BMIp(95) increase per year compared to households that were food secure. CONCLUSIONS: When comparing the BMI effect of the HWC between the food insecure group and food secure group, those experiencing food insecurity in the HWC had an increase in BMI compared to those with food security. These findings suggest that food insecurity may reduce the effectiveness of PWMIs consistent with national recommendations; however, more studies should be conducted to better understand this relationship.