Characteristics | Total (N = 12,395) | PE (N = 293) | No PE (N = 12,102) |
---|---|---|---|
Socio-demographic and current pregnancy factors | |||
Australian/New Zealand-born English speakers | |||
No | 8271 (66.7) | 141 (48.1) | 8130 (67.2) |
Yes | 4124 (33.3) | 152 (51.9) | 3972 (32.8) |
Socioeconomic statusa | |||
High | 8594 (69.3) | 221 (75.4) | 8373 (69.2) |
Low | 3801 (30.7) | 72 (24.6) | 3729 (30.8) |
Conception method | |||
Natural | 11,684 (94.3) | 259 (88.4) | 11,425 (94.4) |
Assistedb | 711 (5.7) | 34 (11.6) | 677 (5.6) |
Maternal age (years) | |||
≤ 24 | 3678 (29.7) | 86 (29.4) | 3592 (29.7) |
25–29 | 5067 (40.9) | 85 (29.0) | 4982 (41.2) |
30–34 | 2848 (23.0) | 87 (29.7) | 2761 (22.8) |
≥ 35 | 802 (6.5) | 35 (11.9) | 767 (6.3) |
Body mass index (kg/m2) | |||
≤ 24 | 8255 (66.6) | 150 (51.2) | 8105 (67.0) |
25–29 | 2646 (21.3) | 58 (19.8) | 2588 (21.4) |
30–34 | 960 (7.7) | 37 (12.6) | 923 (7.6) |
≥ 35 | 534 (4.3) | 48 (16.4) | 486 (4.0) |
Smoking status | |||
Non-smokers | 11,736 (94.7) | 276 (94.2) | 11,460 (94.7) |
Current smokers | 659 (5.3) | 17 (5.8) | 642 (5.3) |
Medical history | |||
Autoimmune diseasec | |||
No | 12,385 (99.9) | 292 (99.7) | 12,093 (99.9) |
Yes | 10 (0.1) | 1 (0.3) | 9 (0.1) |
Chronic hypertension | |||
No | 12,296 (99.2) | 274 (93.5) | 12,022 (99.3) |
Yes | 99 (0.8) | 19 (6.5) | 80 (0.7) |
Chronic renal disease | |||
No | 12,286 (99.1) | 279 (95.2) | 12,007 (99.2) |
Yes | 109 (0.9) | 14 (4.8) | 95 (0.8) |
Diabetes mellitus (type 1 or 2) | |||
No | 12,326 (99.4) | 289 (98.6) | 12,037 (99.5) |
Yes | 69 (0.6) | 4 (1.4) | 65 (0.5) |
Multiple pregnancy | |||
No | 12,087 (97.5) | 265 (90.4) | 11,822 (97.7) |
Yes | 308 (2.5) | 28 (9.6) | 280 (2.3) |
Family history | |||
Family history of PE | |||
No | 12,361 (99.7) | 289 (98.6) | 12,072 (99.8) |
Yes | 34 (0.3) | 4 (1.4) | 30 (0.2) |