A systematic review and meta-analysis 2 investigated whether integrated motivational interviewing and cognitive behaviour therapy leads to changes in lifestyle mediators of overweight and obesity in community-dwelling adults. 10 RCTs involving 1949 participants were included. Integrated motivational interviewing and cognitive behaviour therapy had a significant effect in increasing physical activity levels in community-dwelling adults (SMD 0.18, 95% CI 0.06 to 0.31, p < 0.05). The combined intervention resulted in a small, non-significant effect in body composition changes (SMD -0.12, 95% CI -0.24 to 0.01, p=0.07).
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