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Sleep timing and longitudinal weight gain in 4- and 5-year-old children.


ABSTRACT: Short night-time sleep duration is a possible factor contributing to childhood obesity. Our objective was to evaluate associations between sleep timing (including bedtime and waketime) and weight gain in 4- to 5-year-old children.We used cross-sectional and longitudinal regression analyses of a large, nationally representative sample of children from the Early Childhood Longitudinal Study-Birth Cohort. Data regarding the timing and duration of weekday sleep were assessed via parent questionnaire. Short sleep duration, late bedtime and early waketime were defined as those greater than one standard deviation from the mean for the group.Using linear regression adjusted for confounders, sleep duration at 4 and 5 years and bedtime at 5 years were linked to body mass index (BMI) z-score (P?

SUBMITTER: Scharf RJ 

PROVIDER: S-EPMC5481722 | biostudies-literature | 2015 Apr

REPOSITORIES: biostudies-literature

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Sleep timing and longitudinal weight gain in 4- and 5-year-old children.

Scharf R J RJ   DeBoer M D MD  

Pediatric obesity 20140612 2


<h4>Background and objective</h4>Short night-time sleep duration is a possible factor contributing to childhood obesity. Our objective was to evaluate associations between sleep timing (including bedtime and waketime) and weight gain in 4- to 5-year-old children.<h4>Methods</h4>We used cross-sectional and longitudinal regression analyses of a large, nationally representative sample of children from the Early Childhood Longitudinal Study-Birth Cohort. Data regarding the timing and duration of wee  ...[more]

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