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. 2014 Nov 9:14:1160.
doi: 10.1186/1471-2458-14-1160.

The home environment and childhood obesity in low-income households: indirect effects via sleep duration and screen time

Bradley M Appelhans  1 , Stephanie L Fitzpatrick, Hong Li, Vernon Cail, Molly E Waring, Kristin L Schneider, Matthew C Whited, Andrew M Busch, Sherry L Pagoto
Affiliations

The home environment and childhood obesity in low-income households: indirect effects via sleep duration and screen time

Bradley M Appelhans et al. BMC Public Health. .

Abstract

Background: Childhood obesity disproportionally affects children from low-income households. With the aim of informing interventions, this study examined pathways through which the physical and social home environment may promote childhood overweight/obesity in low-income households.

Methods: Data on health behaviors and the home environment were collected at home visits in low-income, urban households with either only normal weight (n = 48) or predominantly overweight/obese (n = 55) children aged 6-13 years. Research staff conducted comprehensive, in-person audits of the foods, media, and sports equipment in each household. Anthropometric measurements were collected, and children's physical activity was assessed through accelerometry. Caregivers and children jointly reported on child sleep duration, screen time, and dietary intake of foods previously implicated in childhood obesity risk. Path analysis was used to test direct and indirect associations between the home environment and child weight status via the health behaviors assessed.

Results: Sleep duration was the only health behavior associated with child weight status (OR = 0.45, 95% CI: 0.27, 0.77), with normal weight children sleeping 33.3 minutes/day longer on average than overweight/obese children. The best-fitting path model explained 26% of variance in child weight status, and included paths linking chaos in the home environment, lower caregiver screen time monitoring, inconsistent implementation of bedtime routines, and the presence of a television in children's bedrooms to childhood overweight/obesity through effects on screen time and sleep duration.

Conclusions: This study adds to the existing literature by identifying aspects of the home environment that influence childhood weight status via indirect effects on screen time and sleep duration in children from low-income households. Pediatric weight management interventions for low-income households may be improved by targeting aspects of the physical and social home environment associated with sleep.

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Figures

Figure 1
Figure 1
Final path model linking features of the home environment to childhood overweight/obese status through sleep duration (N = 103). Values are standardized path coefficients.
See this image and copyright information in PMC

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Pre-publication history
    1. The pre-publication history for this paper can be accessed here:http://www.biomedcentral.com/1471-2458/14/1160/prepub

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