| Hospital n = 242 936 | Birth centre n = 14 483 | Home n = 742 | P |
---|---|---|---|---|
Maternal age (years) | Â | Â | Â | Â |
Mean (SD) # | 29.2 (5.67) | 30.0 (5.29) | 32.4 (5.23) | <0.001 |
<20 | 15 280 (6.3%) | 513 (3.5%) | 7 (0.9%) | Â |
20-24 | 42 544 (17.5%) | 2 122 (14.7%) | 54 (7.3%) | Â |
25-29 | 73 440 (30.2%) | 4 529 (31.3%) | 159 (21.4%) | <0.001 |
30-34 | 73 404 (30.2%) | 4 788 (33.1%) | 249 (33.6%) | Â |
35-39 | 32 058 (13.2%) | 2 181 (15.1%) | 185 (24.9%) | Â |
≥40 | 6 134 (2.5%) | 349 (2.4%) | 49 (6.6%) |  |
Missing | 76 (0.03%) | 1 (0.09%) | 39 (5.3%) | |
Previous pregnancies (≥20 weeks) |  |  |  |  |
0 | 149 459 (61.5%) | 9 145 (63.1%) | 313 (42.2%) | Â |
1 | 54 445 (22.4%) | 3 328 (23.0%) | 219 (29.5%) | <0.001 |
2 | 24 627 (10.1%) | 1 453 (10.0%) | 143 (19.3%) | Â |
≥3 | 14 259 (5.9%) | 552 (3.8%) | 59 (8.0) | |
Missing | 146 (0.06%) | 5 (0.04%) | 8 (1.1%) | |
Gestation (completed weeks) | Â | Â | Â | Â |
Mean (SD) # | 39.5 (1.10) | 39.8 (1.12) | 39.9 (1.16) | <0.001 |
37 | 12441 (5.1%) | 541 (3.7%) | 22 (3.0%) | <0.001 |
38 | 31268 (12.9%) | 1424 (9.8%) | 55 (7.4%) | |
39 | 62137 (25.6%) | 3405 (23.5%) | 147 (19.8%) | |
40 | 95992 (39.5%) | 5353 (37.0%) | 309 (41.6%) | |
41 | 37682 (15.5%) | 3347 (23.1%) | 147 (19.8%) | |
≥42 | 3416 (1.4%) | 413 (2.9%) | 62 (8.4%) | |
Complication conditions prior to labour | Â | Â | Â | Â |
Prolonged rupture of membranes* | 72 (0.03%) | 0 | 0 | 0.11 |
Preeclampsia | 2579 (1.1%) | 93 (0.6%) | 1 (0.1%) | <0.001 |
Gestational hypertension | 6997 (2.9%) | 322 (2.2%) | 1 (0.1%) | <0.001 |
Chronic hypertension | 685 (0.3%) | 29 (0.2%) | 2 (0.3%) | 0.38 |
Antepartum haemorrhage | 1293 (0.5%) | 64 (0.4%) | 3 (0.4%) | 0.49 |
Eclampsia | 11 (<0.01%) | 0 | 0 | 0.85 |
Gestational diabetes** | 32 (0.01%) | 0 | 2 (0.3%) | 0.36 |
Pre-pregnancy diabetes (Type I) | 149 (0.06%) | 0 | 0 | 0.03 |
Complications per woman | Â | Â | Â | Â |
0 | 221284 (91.1%) | 13725 (94.8%) | 735 (99.1%) | Â |
1 | 18460 (7.6%) | 637 (4.4%) | 6 (0.8%) | <0.001 |
≥2 | 3192 (1.3%) | 121 (0.8%) | 1 (0.1%) |