Cluster | Characteristics | Rapid test (n = 10) | Usual care (n = 10) | Overall (n = 20) |
---|---|---|---|---|
 Region | London and South East England | 5 (50%) | 5 (50%) | 10 (50%) |
Midlands | 5 (50%) | 5 (50%) | 10 (50%) | |
 No. of vaginal deliveries or emergency Caesarean births | Median [IQR] | 4539 [3567–5583] | 3996 [2930–5050] | 4218 [2942–5168] |
 Estimated IAP rate amongst all vaginal deliveries | Median [IQR] | 25.3 [22.8–32.6] | 27.5 [9.9–31.7] | 26.4 [13.4–32.2] |
Participant | Characteristics | Rapid test (n = 722) | Usual care (n = 906) | Overall (n = 1628) |
 Region | London and South East England | 375 (52%) | 458 (51%) | 833 (51%) |
Midlands | 347 (48%) | 448 (49%) | 795 (49%) | |
 Age, years | Mean (SD) | 29.3 (5.8) | 30.1 (5.8) | 29.7 (5.8) |
Missing | 1 | 0 | 1 | |
 Onset of labour | Spontaneous | 343 (48%) | 527 (58%) | 870 (53%) |
Induced | 354 (49%) | 364 (40%) | 718 (44%) | |
Missing | 25 (3%) | 15 (2%) | 40 (2%) | |
 Type of delivery | Spontaneous vaginal | 439 (61%) | 542 (60%) | 981 (60%) |
Instrumental | 102 (14%) | 131 (14%) | 233 (14%) | |
Emergency Caesarean | 173 (24%) | 233 (26%) | 406 (25%) | |
Missing | 8 (1%) | 0 (0%) | 8 (< 1%) | |
 Multiparity | Yes | 465 (64%) | 585 (65%) | 1050 (65%) |
No | 255 (35%) | 321 (35%) | 576 (35%) | |
Missing | 2 (< 1%) | 0 (0%) | 2 (< 1%) | |
 Maternal risk factor for neonatal GBS infection | One risk factor | 674 (93%) | 841 (93%) | 1515 (93%) |
Maternal temperature ≥ 38 °C | 55 (8%) | 139 (15%) | 194 (12%) | |
Previous baby with GBS | 35 (5%) | 40 (4%) | 75 (5%) | |
GBS in this pregnancy | 293 (41%) | 278 (31%) | 571 (35%) | |
Preterm labour | 291 (40%) | 384 (42%) | 675 (41%) | |
Two risk factors | 46 (6%) | 63 (7%) | 109 (7%) | |
Three risk factors | 2 (< 1%) | 2 (< 1%) | 4 (< 1%) |