Table 2.
Risk of bias judgements for studies included in a systematic review and meta-analysis of direct comparisons between diet and physical activity combined behavioral weight management programs (BWMPs) and diet or physical activity only BWMPsa
| Study | Random sequence generation | Allocation concealment | Attrition | Selective reporting | Notes |
|---|---|---|---|---|---|
| Wadden 198824 | Unclear | Unclear | Low | Low | |
| Skender 199623 | Low | Unclear | Low | Low | |
| Wadden 199725 | Unclear | Unclear | Low | Low | |
| Vissers 201019 | Unclear | Unclear | High | Low | The difference in follow-up between the fitness behavioral weight management programs (95%) and the diet-only program (60%) exceeds 20% |
| Rejeski 201121 | Unclear | Unclear | Low | High | Authors measured, but did not report, weight at 12 mo |
| Villareal 201127 | Low | Unclear | Low | Low | |
| Bertz 201222 | Low | Unclear | Low | Low | |
| Foster-Schubert 201220 | Low | Low | Low | Low |
a
Where ‘low’ indicates low risk of bias in that domain, ‘unclear’ indicates insufficient information with which to judge, and ‘high’ indicates high risk of bias in that domain.