Risk-of-bias assessment in those included in meta-analysis/regression
| Randomisation | Deviation from intended interventions | Missing outcome data | Measurement outcome | Selection of reported result | Overall risk of bias (RoB2) | |
| Ashrafi et al22 | ||||||
| Auret et al23 | ||||||
| Barton et al24 | ||||||
| Barton et al25 | ||||||
| Berenson et al26 | ||||||
| Boele et al27 | ||||||
| Bruera et al28 | ||||||
| Bruera et al29 | ||||||
| Cruciani et al31 | ||||||
| Cruciani et al32 | ||||||
| de Oliveira et al33 | ||||||
| Del Fabbro et al34 | ||||||
| Jean-Pierre et al39 | ||||||
| Lee et al41 | ||||||
| Lower et al42 | ||||||
| Lund Rasmussen et al43 | ||||||
| Moraska et al44 | ||||||
| Morrow et al45 | ||||||
| Richard et al46 | ||||||
| Roth et al47 | ||||||
| Spathis et al49 | ||||||
| Yennurajalingham et al30 | ||||||
| Yennurajalingham et al51 |
Yellow=some concerns, red=high risk of bias, green=low risk of bias.
RoB2, revised Cochrane risk-of-bias tool for randomised trials.