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Table 1 Summary effects of behaviour change of interventions in a meta-analysis of 48 RCTs 2007-2014

From: Effective behaviour change techniques for physical activity and healthy eating in overweight and obese adults; systematic review and meta-regression analyses

Time Short term Long term Short + long term
Response measure ES 95% CI ES 95% CI ES 95% CI
Physical activity 0.36 (0.24,0.47) 0.25 (0.13,0.38) 0.31 (0.23,0.40)
  35 trials 30 reports 17 reports 47 reports
Diet 0.41 (0.20,0.62) 0.19 (0.07,0.31) 0.29 (0.16,0.42)
  26 trials 20 reports 15 reports 35 reports
PA + Diet 0.37 (0.26,0.48) 0.24 (0.15,0.33)  
  61 trials 50 reports 32 reports 82 reports
  1. Abbreviations: RCT: randomized controlled trial; ES: effect size; CI: confidence interval; PA: physical activity
  2. Results from a systematic review of 48 RCTs of behaviour change interventions with ≥ 12 weeks’ duration, published from January 2007 to October 2014 for adults (mean age ≥ 40 years and with a mean BMI ≥ 30) according to type of behaviour and time of data collection (p < 0.0001). Short term represents outcome reports at ≤ 6 months in time, and long term represents reports at ≥ 12 months