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Review
. 2014 Nov 28;111(48):818-24.
doi: 10.3238/arztebl.2014.0818.

Weight loss in children and adolescents

Yvonne Mühlig  1 , Martin Wabitsch, Anja Moss, Johannes Hebebrand
Affiliations
Review

Weight loss in children and adolescents

Yvonne Mühlig et al. Dtsch Arztebl Int. .

Abstract

Background: 15% of children and adolescents in Germany are overweight, including 6.3% who are affected by obesity. The efficacy of conservative weight-loss treatments has been demonstrated, but there has not yet been a detailed analysis of their efficacy in terms of the amount of weight loss that can be expected. We re-evaluated the available evidence on this question, with particular attention to the methodological quality of clinical trials, in order to derive information that might be a useful guide for treatment.

Methods: We conducted a systematic literature search of Medline for the period May 2008 (final inclusion date for a 2009 Cochrane Review) to December 2013. The identified studies were analyzed qualitatively.

Results: 48 randomized controlled clinical trials with a total of 5025 participants met the predefined inclusion criteria for this analysis. In the ones that met predefined criteria for methodological quality, conservative weight-loss treatments led to weight loss in amounts ranging from 0.05 to 0.42 BMI z score (standard deviation score of the body mass index) over a period of 12-24 months. Information on trial dropout rates was available for 41 of the 48 trials; the dropout rate was 10% or higher in 27 of these (66% ), and 25% or higher in 9 (22% ).

Conclusion: The available evidence consistently shows that only a modest degree of weight loss can be expected from conservative treatment. Families seeking treatment should be informed of this fact. Future research should focus on determining predictive factors for therapeutic benefit, and on the evaluation of additional types of psychological intervention to promote coping with obesity.

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Figures

Figure
Figure
PRISMA 2009: Flow of information through the different phases of a systematic review (12 , 13 ). BMI, body-mass index; z score, standard deviation score
eFigure
eFigure
Methodological quality of trials
See this image and copyright information in PMC

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