Table 2.
Screening characteristics of the included reviews
| Review | Screened by human reviewers, n (%)a | Screened in Abstrackr, n (%) | |||
|---|---|---|---|---|---|
| Screening workload | Included, title and abstract | Included, final report | Training set (n includes/excludes, % includes)b | Predicted relevant | |
| Systematic reviews | |||||
| Activity and pregnancy | 2928 | 236 (8) | 98 (3) | 10/190 (5) | 319 (12) |
| Antipsychotics | 12156 | 1177 (10) | 127 (1) | 15/185 (8) | 2117 (18) |
| Brain injury | 6262 | 518 (8) | 40 (1) | 11/189 (6) | 2126 (35) |
| Concussion | 1439 | 46 (3) | 5 (< 1) | 3/197 (2) | 638 (51) |
| Diabetes | 47141 | 698 (1) | 205 (< 1) | 104/196 (52) | 5187 (11) |
| Digital technologies for pain | 2662 | 207 (8) | 64 (2) | 15/185 (8) | 321 (13) |
| Experiences of bronchiolitis | 651 | 88 (14) | 28 (4) | 13/187 (7) | 111 (25) |
| Experiences of UTIs | 1493 | 25 (2) | 4 (< 1) | 3/197 (2) | 864 (67) |
| Treatments for bronchiolitis | 5861 | 518 (9) | 137 (2) | 12/188 (6) | 656 (12) |
| VBAC | 5092 | 807 (16) | 21 (< 1) | 25/175 (13) | 1490 (30) |
| Visual acuity | 11229 | 224 (2) | 1 (< 1) | 4/296 (1) | 3639 (33) |
| Rapid reviews | |||||
| Community gardening | 1536 | 153 (10) | 32 (2) | 55/145 (28) | 139 (10) |
| Depression safety | 964 | 44 (5) | 8 (1) | 7/193 (4) | 449 (59) |
| Depression treatments | 1583 | 418 (26) | 179 (11) | 43/157 (22) | 904 (65) |
| Preterm delivery | 451 | 96 (21) | 34 (8) | 47/153 (24) | 95 (38) |
| Workplace stress | 767 | 141 (18) | 59 (8) | 36/164 (18) | 210 (37) |
UTI urinary tract infection, VBAC vaginal birth after cesarean
aRetrospective screening data
bThe training set was 200 records for all reviews except diabetes and visual acuity, for which it was 300