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Motivational Interviewing to Treat Adolescents With Obesity: A Meta-analysis
Monique K Vallabhan1, Elizabeth Y Jimenez2,3, Jacob L Nash4
1Division of Adolescent Medicine, Department of Pediatrics, School of Medicine, and mvallabhan@salud.unm.edu.
Pediatrics
|October 24, 2018
Summary
Motivational interviewing (MI) shows limited effectiveness for adolescent obesity treatment. Further research with larger sample sizes and longer durations is recommended to assess its true impact on weight management.
Area of Science:
- Adolescent health
- Behavioral science
- Public health
Background:
- Obesity in adolescents requires effective treatment strategies.
- Motivational interviewing (MI) is a counseling approach that promotes behavior change and shows potential for lifestyle interventions.
Purpose of the Study:
- To conduct a systematic review and meta-analysis of motivational interviewing (MI) for treating overweight and obesity in adolescents.
- To evaluate the effects of MI on anthropometric and cardiometabolic outcomes in adolescents.
Main Methods:
- Systematic search of multiple databases (Medline, Embase, CINAHL, PsycINFO, Web of Science, Cochrane Library, Google Scholar) from January 1997 to April 2018.
- Inclusion of 17 studies, with 11 utilized in the meta-analysis.
- Data extraction and risk of bias assessment by two authors.
Main Results:
- No significant reduction in Body Mass Index (BMI) or BMI percentile was observed (BMI MD -0.27; BMI percentile MD -1.07).
- No discernible effects on BMI z-score, waist circumference, glucose, triglycerides, cholesterol, or fasting insulin.
- Qualitative synthesis indicated potential for MI to improve health behaviors when combined with other interventions.
Conclusions:
- Motivational interviewing (MI) alone may not be effective for treating adolescent overweight and obesity.
- Limitations including small sample sizes, moderate risk of bias, and short follow-up periods complicate results.
- Larger, longer-duration studies are necessary to definitively assess MI's efficacy in adolescent weight management.
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