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Prevention of childhood obesity : what type of evidence should we consider relevant ?

Doak, C. and Heitmann, B. and Summerbell, C.D. and Lissner, L. (2009) 'Prevention of childhood obesity : what type of evidence should we consider relevant ?', Obesity reviews., 10 (3). pp. 350-356.

Abstract

Two reviews, one by Summerbell et al. and the other by Doak et al. came to very different conclusions about the effectiveness of childhood obesity interventions. The aim of this commentary is to assess the extent to which inclusion and exclusion criteria, and the definition of effective outcomes, explain discrepant results. Differences in results were compared by inclusion criteria and outcome definitions. The most important summary recommendations for inclusion/exclusion criteria were to exclude all non-peer review articles, to maintain a 6-month lower limit for duration of study, to include interventions from before 1990, to include pre-school age groups, to include pilot studies and to intervene in high-risk communities. Authors did not reach consensus regarding inclusion of aims not specific to preventing weight gain and the manner of assessment of anthropometric measures. Combining both reviews and applying agreed exclusion criteria leaves 30 interventions; 50% are positive. Excluding studies without an aim specific to preventing weight gain leaves 10/24 (42%) positive interventions. The differences in the results of these two reviews relate to the inclusion criteria and outcome assessments. These findings underscore the importance of the evidence considered in assessing interventions.

Item Type:Article
Keywords:Obesity, Child, Prevention, Review.
Full text:PDF - Accepted Version (263Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1111/j.1467-789X.2008.00550.x
Publisher statement:The definitive version is available at www3.interscience.wiley..com.
Record Created:27 May 2009 14:35
Last Modified:10 Jul 2013 09:19

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