Trial and participant characteristics: | Study n | Median group weight change (Inter-quartile range) | p-value | |
---|---|---|---|---|
Trial Characteristics | Â | Â | Â | Â |
Trial design | Â | Â | Â | Â |
  Randomised controlled trial | 78 | 0.0 | (−1.1, 0.8) |  |
  Quasi-experimental study design | 7 | 0.5 | (−0.2, 0.9) | 0.200 |
Recruitment strategy | Â | Â | Â | Â |
  Searches of existing registers | 36 | 0.4 | (−0.8, 1.25) |  |
  Media appeal for volunteers | 40 | 0.0 | (−1.1, 0.6) | 0.498 |
Intervention duration*δ |  |  |  |  |
  ≤6 months | 54 | 0.1 | (−0.8, 0.6) |  |
  >6 months | 31 | 0.2 | (−1.1, 1.9) | 0.637 |
Total number of assessments* | Â | Â | Â | Â |
  2 (baseline and follow up) | 59 | 0.2 | (−0.5, 0.7) |  |
  >2 (at least one interim assessment) | 26 | −0.6 | (−1.4, 1.3) | 0.468 |
Control group treatment | Â | Â | Â | Â |
  No intervention control group | 33 | 0.3 | (−0.4, 0.6) |  |
  Wait list control group | 14 | 0.4 | (−0.4, 2.1) |  |
  Usual care group | 38 | −0.5 | (−1.3, 0.8 ) | 0.139 |
Sample Characteristics | Â | Â | Â | Â |
Age* | Â | Â | Â | Â |
  ≤50 years | 45 | 0.4 | (−1.1, 0.9) |  |
  >50 years | 36 | 0.0 | (−0.7, 0.8) | 0.427 |
Gender | Â | Â | Â | Â |
  Mostly female (>60 % female) | 48 | −0.1 | (−1.1, 0.8) |  |
  Mixed gender or mostly male | 37 | 0.3 | (−0.8, 1.0) | 0.346 |
Target population | Â | Â | Â | Â |
  Healthy or at risk of chronic disease | 59 | 0.0 | (−1.1, 0.6) |  |
  Chronic disease | 26 | 0.3 | (−0.8, 1.2) | 0.247 |
Baseline mean BMI category | Â | Â | Â | Â |
  Healthy or overweight (≥ 18 - <25 kg/m 2 ) | 33 | 0.3 | (−0.5, 0.8) |  |
  Obese (> 30 kg/m2) | 48 | 0.0 | (−1.1, 0.9) | 0.441 |