Table 2 Characteristics of the systematic reviews by intended review type
From: Children in reviews: Methodological issues in child-relevant evidence syntheses
| Â | Intended Review Type | ||||
|---|---|---|---|---|---|
Variable | Adult Reviews N = 67 | Child Reviews N = 45 | Mixed Reviews N = 153 | Not Specified Reviews N = 143 | Total N = 408 |
Funding, N (%) | Â | Â | Â | Â | Â |
   External | 26 (39) | 23 (51) | 67 (44) | 89 (62) | 205 (50) |
   Internal | 56 (84) | 24 (53) | 92 (60) | 93 (65) | 265 (65) |
   No funding | 6 (9) | 10 (22) | 45 (29) | 22 (15) | 83 (20) |
Languages of studies, N (%) | Â | Â | Â | Â | Â |
   English only | 1 (1) | 0 | 0 | 3 (2) | 4 (1) |
   English and non-English (no language restrictions) | 34 (51) | 16 (36) | 53 (35) | 54 (38) | 157 (38) |
   Not specified | 32 (48) | 29 (64) | 100 (65) | 86 (22) | 247 (61) |
Included study designs, N (%) | Â | Â | Â | Â | Â |
   RCT | 47 (70) | 30 (67) | 91 (60) | 82 (57) | 250 (61) |
   CCT | 20 (30) | 15 (33) | 62 (40) | 60 (42) | 157 (38) |
   Other | 0 | 0 | 0 | 1 (0.7) | 1 (0.2) |
Median number of included trials, Median (Interquartile range) | 9 (3–14) | 10 (5–13) | 8 (3–12) | 7 (4–17) | 8 (4–15) |
Median number of participants, Median (Interquartile range) | 813 (263–1836) | 718 (313–1712) | 551 (235–1474) | 776 (305–2151) | 681 (210–1670) |
Number of reviews where the authors planned a subgroup analysis by age, N | 2 | 10 | 30 | 10 | 52 |
Number of reviews where authors conducted a subgroup analysis by age, N | 2 | 6 | 20 | 3 | 31 |
Number of reviews where authors found a difference in effect between adults and children, N | 1 | 0 | 0 | 0 | 1 |