Table 3 Bias judgements by intervention type
Reviews | Studies | Patients | Total bias judgements made | Low risk of bias (% of judgements made) | High risk of bias (% of judgements made) | Unclear risk of bias (% of judgements made) | Informs clinical practice—firm (% of reviews) | Informs clinical practice—tempered (% of reviews) | Does not inform clinical practice—tempered (% of reviews) | Does not inform clinical practice—firm (% of reviews) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
All | 95 | 1892 | 525,927 | 7564 | 3291 (43) | 1490 (20) | 2783 (37) | 32 (34) | 27 (28) | 17 (18) | 19 (20) |
M | 21 | 368 | 105,200 | 1732 | 863 (50) | 278 (16) | 591 (34) | 15 (71) | 2 (10) | 1 (5) | 3 (14) |
S | 54 | 834 | 198,514 | 3248 | 1348 (42) | 694 (21) | 1206 (37) | 11 (20) | 20 (37) | 10 (19) | 13 (24) |
MS | 20 | 690 | 221,190 | 2584 | 1080 (42) | 518 (20) | 986 (38) | 6 (30) | 5 (25) | 6 (30) | 3 (15) |