A longitudinal study of sleep, weight status, and weight-related behaviors: Childhood Obesity Study in China Mega-cities.

BACKGROUND The aim of the study was to examine correlates of sleep and assess its associations with weight status and related behaviors. METHODS Data were collected in 2015-2017 for 3298 children aged 6-17 years and their parents in 5 Chinese mega-cities. One thousand six hundred and ninety-one children with measured weight, height, and waist circumference in ≥2 surveys were included for longitudinal data analyses. Sleep and behaviors were self-reported. RESULTS Cross-sectional data analyses found that older (β = -0.29, 95% CI: -0.32, -0.27) and secondary school children (β = -1.22, 95% CI: -1.31, -1.13) reported shorter sleep than their counterparts. Children with ≥college-educated (vs

Keywords:

• weight status
• Demography
• Medicine
• Obesity
• longitudinal data
• Childhood obesity
• Screen time
• Longitudinal study
• Psychological intervention
• Waist

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