Abstract 15862: The Effect of Mobile Phone Intervention on Weight Loss Among Overweight and Obese Adults: A Meta-Analysis of Randomized Controlled Trials
Overweight and obesity is a major global health challenge due to its high prevalence and associated increases in chronic disease morbidity and mortality, including cardiovascular disease. Body weight management is so important that even modest levels of sustained weight loss could yield substantial reductions in weight related morbidity, mortality, and health care costs. In the current study, we aimed to conduct a meta-analysis of randomized controlled trials to examine the effect of mobile phone intervention on net change in weight related measures among overweight and obese adults. To identify articles published before 27th March, 2014, the authors searched electronic databases (PubMed, EmBase, CENTRAL and Web of Science) and conducted a bibliography review. Fourteen trials (including 1,337 participants in total) met the eligibility criteria were included. Two investigators independently abstracted information on study characteristics and study outcomes. Net change estimates comparing the intervention group with control group were pooled across trials using random-effects models. A total of 14 trials were included in the current analyses, with 13 comparisons of body weight, 5 comparisons of BMI, 3 comparisons of WC, and 1 comparison of body fat. Compared to the control group, mobile phone intervention was associated with significant modest decreases in body weight and body mass index of -1.44 kg (95% confidence interval (CI): -2.12, -0.76) and -0.24 kg/m2 (95% CI: -0.40, -0.08), respectively. Subgroup analyses revealed that the effects were consistent across intervention duration and intervention mode subgroups. For example, net body weight changes were -0.92 kg (95% CI: -1.58, -0.25) and -1.85 kg (95% CI: -2.99, -0.71) in trials of shorter (<6 months) and longer (≥6 months) duration, respectively. Results were also consistent comparing mobile phone intervention that included only short message service to those with short message service combined with multimedia service, with body weight changes of -1.53 kg (-2.34, -0.73) and -1.16 kg (-2.22, -0.10), respectively. These findings provide evidence that mobile phone intervention may be a useful tool for both short term and sustained weight loss among overweight and obese adults.
Author Disclosures: F. Liu: None. X. Kong: None. J. Cao: None. S. Chen: None. C. Li: None. J. Huang: None. D. Gu: None. T.N. Kelly: None.
- © 2014 by American Heart Association, Inc.