| Total reviews (N = 17) |
---|---|
Reviews with meta-analysis*: n (%) | 16 (94.1%) |
Pre-specified subgroups | |
 Reviews with pre-specified subgroupsa | 13 (76.5%) |
 Planned covariates for subgroup analysis: median (min, max) | 3 (0, 6) |
 Reviews with subgroup analyses conducted: n (%)b | 7 (41.2%) |
 Covariates used in subgroup analyses: median (min, max) | 2 (1, 6) |
 Reviews with subgroup effects**: n (%)c | 3 (17.6%) |
 Covariates in subgroup analyses: median (min, max) | 2 (1, 3) |
Post hoc subgroup analyses | |
 Reviews with post hoc subgroup analysesd | 5 (29.4%) |
 Reviews with post hoc subgroup effects: n (%) e | 4 (23.5%) |
 Covariates used in subgroup analyses: median (min, max) | 1 (1, 5) |
Any subgroup analyses performed, pre-specified, or Post Hoc | |
 Reviews with any subgroup analysesf | 9 (52.9%) |
 Covariates used in subgroup analyses: median (min, max) | 2 (1, 11) |
 Number with subgroup effects: n (%) | 5 (29.4%) |
No subgroup analyses performed | |
 Reviews with no subgroup analyses performedg | 8 (47.1%) |
Reasons for not conducting subgroup analyses: n (%) | Â |
  Insufficient data/studies | 4 (23.5%) |
  Not planned | 4 (23.5%) |