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*Dagens forskningsoversigt fra Scias Update:*
Effectiveness of Social Media-based Interventions on Weight-related
Behaviors and Body Weight Status: Review and Meta-analysis.
Am J Health Behav. 2017 Nov 01;41(6):670-682
Authors: An R, Ji M, Zhang S
Abstract
OBJECTIVES: We reviewed scientific literature regarding the effectiveness
of social media-based interventions about weight-related behaviors and body
weight status.
METHODS: A keyword search were performed in May 2017 in the
Clinical-Trials.gov, Cochrane Library, PsycINFO, PubMed, and Web of Science
databases. We conducted a meta-analysis to estimate the pooled effect size
of social media-based interventions on weight-related outcome measures.
RESULTS: We identified 22 interventions from the keyword and reference
search, including 12 randomized controlled trials, 6 pre-post studies and 3
cohort studies conducted in 9 countries during 2010-2016. The majority (N =
17) used Facebook, followed by Twitter (N = 4) and Instagram (N = 1).
Intervention durations averaged 17.8 weeks with a mean sample size of 69.
The meta-analysis showed that social media-based interventions were
associated with a statistically significant, but clinically modest
reduction of body weight by 1.01 kg, body mass index by 0.92 kg/m2, and
waist circumstance by 2.65 cm, and an increase of daily number of steps
taken by 1530. In the meta-regression there was no doseresponse effect with
respect to intervention duration.
CONCLUSIONS: The boom of social media provides an unprecedented opportunity
to implement health promotion programs. Future interventions should make
efforts to improve intervention scalability and effectiveness.
PMID: 29025495
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Dette abstract er hentet via PubMed fra National Library of Medicine, USA
<https://www.ncbi.nlm.nih.gov/home/about/policies>.
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