Overnight sleep duration and obesity in 2-5 year-old American Indian children.
Pediatr Obes
; 13(7): 406-412, 2018 07.
Article
in En
| MEDLINE
| ID: mdl-29700995
ABSTRACT
BACKGROUND:
Sleep has emerged as a potentially modifiable risk factor for obesity in children.OBJECTIVES:
The purpose of this investigation was to evaluate the association between overnight sleep duration and obesity among American Indian (AI) children ages 2-5 years.METHODS:
Data were examined from the baseline assessment of children enrolling in the Healthy Children, Strong Families study, which is a randomized lifestyle intervention trial in five diverse rural and urban AI communities nationally among children ages 2-5 years. Multivariable models were built to assess the relationship between sleep duration and BMI z-score while controlling for potential sociodemographic and behavioural covariates.RESULTS:
Three hundred and ninety-eight children had sufficient data to be included in analysis. In multivariable models controlling for potential covariates, overnight sleep duration was significantly and inversely associated with BMI z-score (B = -0.158, t = -1.774, P = 0.006). Similarly, when controlling for covariates, children who slept 12 or more hours had significantly lower BMI z-scores compared with those who slept 8 to 10 h (P = 0.018) or less than 8 h (P = 0.035); the difference between 12+ hours and 10 to 12-h groups did not reach statistical significance (P = 0.073) but supported a linear relationship between overnight sleep duration and BMI. Weekday-to-weekend variability in overnight sleep duration was not associated with BMI z-score (B = 0.010, t = 0.206, P = 0.837).CONCLUSIONS:
Overnight sleep duration is independently and inversely related to BMI z-score among AI children ages 2-5 years, even when controlling for important sociodemographic and obesogenic lifestyle factors. This represents the first report, to our knowledge, of sleep duration as a risk factor for obesity among AI children.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Sleep
/
Indians, North American
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Pediatric Obesity
Type of study:
Clinical_trials
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Etiology_studies
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Prognostic_studies
/
Risk_factors_studies
Limits:
Child, preschool
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Female
/
Humans
/
Male
Language:
En
Journal:
Pediatr Obes
Year:
2018
Type:
Article
Affiliation country:
United States