Table 2 Quality of all reviews, Cochrane and non-Cochrane systematic reviews according to AMSTAR and R-AMSTAR percentile scores
| Â | All SRs | Cochrane SRs | Non-Cochrane SRs | |||
|---|---|---|---|---|---|---|
Grade | AMSTAR N (%) | R-AMSTAR N (%) | AMSTAR N (%) | R-AMSTAR N (%) | AMSTAR N (%) | R-AMSTAR N (%) |
A | 14 (14) | 11 (11) | 14 (45) | 11 (36) | 0 (0) | 0 (0) |
B | 9 (9) | 9 (9) | 6 (19) | 6 (19) | 3 (5) | 3 (5) |
C | 10 (10) | 9 (9) | 4 (13) | 4 (13) | 6 (9) | 5 (8) |
D | 64 (66) | 68 (70) | 7 (23) | 10 (32) | 57 (86) | 58 (88) |
Total | 97 (100) | 97 (100) | 31 (100) | 31 (100) | 66 (100) | 66 (100) |