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Gender Differences in Determinants of Growth From 1st to 8th Grade: Two Methods of Evaluation: 3808 Board #247 June 4, 9: 30 AM - 11: 00 AM.

RESULTS: Children averaged 500.06 min/day in SED (489.67 boys; 511.11 girls: p=0.005) and 3.9 hours/day in ST (4.1 boys; 3.7% girls: p=(.053). For boys and girls combined, SED was negatively associated with healthy eating score and moderate-to-vigorous physical activity (MVPA). In boys, the only significant correlate of SED was MVPA (β-1.434). In girls, significant correlate of SED were healthy eating score (β-19.301), time of travel to school (β 57.918), and MVPA (β-1.896). For boys and girls combined, ST was negatively associated with BMI and healthy eating score. In boys, the significant correlates of ST were BMI (β .019), healthy eating score (β.090) and TV in bedroom (β.201). In girls, significant correlate of ST were healthy eating score (β.184), time of travel to school (β-.230), and policies or practices on physical activity (β-.281). CONCLUSIONS: Several factors were identified as correlates of SED and/or of ST in Brazilian children; however, few correlates were common for both SED and ST, and for both boys and girls. This suggests that a single strategy to reduce SED and ST is unlikely to be effective.