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Table 1 Demographic characteristics and complications prior to labour by planned place of birth

From: Birthplace in New South Wales, Australia: an analysis of perinatal outcomes using routinely collected data

  Hospital n = 242 936 Birth centre n = 14 483 Home n = 742 P
Maternal age (years)     
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%)  
20-24 42 544 (17.5%) 2 122 (14.7%) 54 (7.3%)  
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%)  
35-39 32 058 (13.2%) 2 181 (15.1%) 185 (24.9%)  
≥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%)  
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%)  
≥3 14 259 (5.9%) 552 (3.8%) 59 (8.0)
Missing 146 (0.06%) 5 (0.04%) 8 (1.1%)
Gestation (completed weeks)     
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     
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     
0 221284 (91.1%) 13725 (94.8%) 735 (99.1%)  
1 18460 (7.6%) 637 (4.4%) 6 (0.8%) <0.001
≥2 3192 (1.3%) 121 (0.8%) 1 (0.1%)
  1. #Utilising ANOVA.
  2. *Prolonged rupture of membranes: >24 hours.
  3. **Any form of GDM.