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Can J Public Health. 2010 Sep-Oct;101(5):365-8.

Prevention potential of risk factors for childhood overweight.

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  • 1School of Public Health, University of Alberta, Edmonton, AB.

Abstract

BACKGROUND:

In order to better target prevention initiatives for the obesity epidemic in Canada, policy-makers, in addition to information about risk factors, require an understanding of the preventive potential which is best provided by the risk factor's population attributable risk fraction (PARF).

OBJECTIVE:

To estimate the PARF for childhood overweight risk factors as identified by a population-based study of elementary schoolchildren in Nova Scotia.

METHODS:

Population-based survey data of Grade 5 students who participated in the 2003 Children's Lifestyle and School Performance Study in Nova Scotia, Canada, were linked to a provincial perinatal registry. PARFs were calculated from a parsimonious multilevel logistic regression model.

RESULTS:

Physical activity, sedentary activity, maternal smoking during pregnancy, and maternal pre-pregnancy weight were considered potentially preventable. Sedentary activity (as estimated from time spent viewing TV, computers and video games or "screen time") and maternal pre-pregnancy weight appeared to offer the greatest potential for prevention. In total, approximately 40% of-overweight in childhood could potentially be prevented.

CONCLUSION:

Excess screen time and maternal pre-pregnancy weight offer the greatest potential for prevention of childhood overweight at 11 years of age.

PMID:
21214049
[PubMed - indexed for MEDLINE]
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