Table 1 Participant characteristics compared between controls and: (i) those with a SGA infant; (ii) women who developed preeclampsia
Controls (n = 207) | All SGA (n = 102) | P | Preeclampsia (n = 39) | P | |
|---|---|---|---|---|---|
Age (years) | 32.1 (4.7) | 31.9 (4.2) | 0.72 | 33.1 (4.7) | 0.27 |
Booking Body Mass Index (kg/m2) | 25.4 (4.6) | 25.4 (5.8) | 0.45 | 27.6 (6.0) | 0.02 |
Smoking status | |||||
Current smoker | 17 (8.2%) | 8 (7.8%) | 0.98 | 2 (5.1%) | 0.80 |
Ex-smoker | 51 (24.6%) | 26 (25.5%) | 10 (25.6%) | ||
Never | 139 (67.1%) | 68 (66.7%) | 27 (69.2%) | ||
Gestational diabetes mellitus | 38 (18.4%) | 18 (17.6%) | 1.00 | 9 (23.1%) | 0.51 |
Parity | |||||
0 | 118 (57.0%) | 58 (56.9%) | 0.97 | 28 (71.8%) | 0.20 |
1 | 65 (31.4%) | 33 (32.4%) | 9 (23.1%) | ||
> 1 | 24 (11.6%) | 11 (10.8%) | 2 (5.1%) | ||
Onset of delivery | |||||
Induction of labour | 88 (42.5%) | 47 (46.1%) | 0.08 | 19 (48.7%) | 0.25 |
Spontaneous labour | 96 (46.4%) | 36 (35.3%) | 13 (33.3%) | ||
No labour | 23 (11.1%) | 19 (18.6%) | 7 (17.9%) | ||
Mode of delivery | |||||
Normal vaginal delivery | 102 (49.3%) | 45 (44.1%) | 0.64 | 11 (28.2%) | 0.01 |
Instrumental delivery | 42 (20.3%) | 22 (21.6%) | 7 (17.9%) | ||
Emergency caesarean | 42 (20.3%) | 20 (19.6%) | 17 (43.6%) | ||
Elective caesarean | 21 (10.1%) | 15 (14.7%) | 4 (10.3%) | ||
Birthweight (g) | 3547 (444) | 2683 (333) | < 0.0001 | 3308 (640) | 0.005 |
Birthweight centile | 52.1 (26.1) | 5.3 (3.0) | < 0.0001 | 42.8 (30.4) | 0.049 |
Gestational age at delivery (weeks+days) | 39+ 5 (1+ 1) | 39+ 0 (1+ 4) | < 0.0001 | 39+ 0 (1+ 4) | 0.03 |