Anthropometric outcomes of a motivational interviewing school-based randomized trial involving adolescents with overweight

作者：Freira Silvia^*; Lemos Marina Serra; Fonseca Helena; Williams Geoffrey; Ribeiro Marta; Pena Fernanda; Machado Maria do Ceu

来源：European Journal of Pediatrics, 2018, 177(7): 1121-1130.

DOI：10.1007/s00431-018-3158-2

• Pediatric obesity
• School health services
• Motivational interviewing
• Body mass index
• Body composition
• Blood pressure

Motivational interviewing (MI) is an effective method to promote weight loss that can be delivered by non-mental health providers. The aim of this study was to evaluate whether MI was superior to conventional counseling to improve the anthropometric outcomes of adolescents with obesity/overweight. It was a controlled cluster randomized trial with parallel design in a school setting. The study included two groups: Motivational Interviewing Group (MIG) and control group (Conventional Intervention Group, CIG). Students participated in three face-to-face 30-min interviews, 3 months apart. Outcomes were BMI z-score, abdominal circumference, percentages of fat mass and muscle mass, and blood pressure. Sessions were coded with the Motivational Interviewing Treatment Integrity (MITI) manual. Mixed repeated-measures ANOVAs were used to assess the group versus time interaction. Effect sizes were calculated for each ANOVA with eta-squared measures (eta(2)). Eighty-three adolescents finished the protocol. While MIG participants showed a significant improvement in all anthropometric scores at 6 months, CIG participants showed an unfavorable change in those variables.
Conclusion: Our results provide additional evidence of the short-term usefulness of a school-based MI intervention on anthropometric outcomes of adolescents with obesity/overweight, demonstrating that pediatricians can play an important role in the prevention and management of pediatric obesity.
.

• 出版日期2018-7