Table 2 subgroup analysis
From: How is AMSTAR applied by authors – a call for better reporting
Risk overview (n = 154) | Risk all other (n = 93) | Risk ratio (95% CI) | |
|---|---|---|---|
Study designs included in SRs reported | 130/154 (84%) | 51/93 (55%) | 1.54 (1.26 to 1.87) |
AMSTAR assessment reported | 103/154 (67%) | 67/93 (72%) | 0.93 (0.78 to 1.10) |
Number of reviewers reported | 61/154 (40%) | 37/93 (40%) | 1.00 (0.73 to 1.37) |
Number of reviewers per review reported | 114/154 (74%) | 70/93 (75%) | 0.98 (0.85 to 1.14) |
IRR reported | 21/154 (14%) | 37/93 (40%) | 0.34 (0.21 to 0.55) |
AMSTAR version reported | 18/154 (12%) | 16/93 (17%) | 0.64 (0.35 to 1.18) |
AMSTAR modifications | 31/154 (20%) | 26/93 (28%) | 0.72 (0.46 to 1.13) |
Rationale for AMSTAR reported | 10/154 (6%) | 13/93 (14%) | 0.46 (0.21 to 1.02) |
AMSTAR score obtained | 121/154 (79%) | 79/93 (85%) | 0.93 (0.82 to 1.04) |
Calculation of AMSTAR score reporteda | 65/121 (54%) | 64/79 (81%) | 0.66 (0.54 to 0.81) |
AMSTAR score as inclusion criteriona | 21/121 (17%) | 1/79 (1%) | 13.71 (1.88 to 99.90) |
Categorization | 90/154 (58%) | 42/93 (45%) | 1.29 (1.00 to 1.68) |
Limitations with respect to study designs mentioned (if other studies than RCTs were included in reviews)b | 5/96 (5%) | 9/46 (20%) | 0.27 (0.09 to 0.75) |
Limitations with respect to overall score mentioneda | 2/121 (2%) | 16/79 (20%) | 0.08 (0.02 to 0.35) |