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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