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Review
. 2016 Mar;50(3):402-415.
doi: 10.1016/j.amepre.2015.09.030.

Reducing Recreational Sedentary Screen Time: A Community Guide Systematic Review

Affiliations
Review

Reducing Recreational Sedentary Screen Time: A Community Guide Systematic Review

Leigh Ramsey Buchanan et al. Am J Prev Med. 2016 Mar.

Erratum in

  • Correction.
    [No authors listed] [No authors listed] Am J Prev Med. 2016 Jun;50(6):809. doi: 10.1016/j.amepre.2016.03.006. Epub 2016 May 18. Am J Prev Med. 2016. PMID: 27208551 No abstract available.

Abstract

Context: Sedentary time spent with screen media is associated with obesity among children and adults. Obesity has potentially serious health consequences, such as heart disease and diabetes. This Community Guide systematic review examined the effectiveness and economic efficiency of behavioral interventions aimed at reducing recreational (i.e., neither school- nor work-related) sedentary screen time, as measured by screen time, physical activity, diet, and weight-related outcomes.

Evidence acquisition: For this review, an earlier ("original") review (search period, 1966 through July 2007) was combined with updated evidence (search period, April 2007 through June 2013) to assess effectiveness of behavioral interventions aimed at reducing recreational sedentary screen time. Existing Community Guide systematic review methods were used. Analyses were conducted in 2013-2014.

Evidence synthesis: The review included 49 studies. Two types of behavioral interventions were evaluated that either (1) focus on reducing recreational sedentary screen time only (12 studies); or (2) focus equally on reducing recreational sedentary screen time and improving physical activity or diet (37 studies). Most studies targeted children aged ≤13 years. Children's composite screen time (TV viewing plus other forms of recreational sedentary screen time) decreased 26.4 (interquartile interval= -74.4, -12.0) minutes/day and obesity prevalence decreased 2.3 (interquartile interval= -4.5, -1.2) percentage points versus a comparison group. Improvements in physical activity and diet were reported. Three study arms among adults found composite screen time decreased by 130.2 minutes/day.

Conclusions: Among children, these interventions demonstrated reduced screen time, increased physical activity, and improved diet- and weight-related outcomes. More research is needed among adolescents and adults.

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Figures

Figure 1.
Figure 1.
Analytic framework: hypothesized ways in which reducing screen time can improve diet and activity outcomes.
Figure 2.
Figure 2.
Search process showing number of studies identified, reviewed in full text, reasons for exclusion, and total number of included studies.

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