Table 1. Sociodemographic characteristics and previous medical problems in pregnant women with BMI>50 and comparison women with BMI<50 during pregnancy.
| Number (%) of obese women (n = 932) | Number (%) of comparison women (n = 1232) |
P-value | ||||
|---|---|---|---|---|---|---|
| Sociodemographic characteristics | ||||||
| Age | Mean (Std) | 31 | (5.7) | 30 | (6.0) | <0.001 |
| BMI at booking | Median (IQR) | 53 | (51–56) | 24.5 | (21.8–28.4) | <0.001 |
| Smoking status | Never/ex-smoker | 684 | (73.4) | 945 | (76.7) | |
| Smoked during pregnancy | 230 | (24.7) | 246 | (20) | 0.014 | |
| Missing | 18 | (1.9) | 41 | (3.3) | ||
| Known previous medical history | ||||||
| Known cardiac disease | None | 921 | (98.8) | 1,212 | (98.4) | |
| Yes | 7 | (0.8) | 8 | (0.6) | 0.786 | |
| Missing | 4 | (0.4) | 12 | (1) | ||
| Known renal disease | None | 919 | (98.6) | 1,213 | (98.5) | |
| Yes | 9 | (1) | 7 | (0.6) | 0.290 | |
| Missing | 4 | (0.4) | 12 | (1) | ||
| Known mental health issues | None | 855 | (91.7) | 1,155 | (93.8) | |
| Yes | 73 | (7.8) | 65 | (5.3) | 0.017 | |
| Missing | 4 | (0.4) | 12 | (1) | ||
| Known asthma | None | 818 | (87.8) | 1,159 | (94.1) | |
| Yes | 110 | (11.8) | 62 | (5) | <0.001 | |
| Missing | 4 | (0.4) | 11 | (0.9) | ||
| Previous caesarean deliveries | None | 419 | (45) | 542 | (44) | |
| Yes | 203 | (21.8) | 166 | (13.5) | <0.001 | |
| Not applicable | 306 | (32.8) | 519 | (42.1) | ||
| Missing | 4 | (0.4) | 5 | (0.4) | ||
| Parity | Nulliparous | 306 | (32.8) | 519 | (42.1) | <0.001 |
| Multiparous | 625 | (67.1) | 713 | (57.9) | ||
| Missing | 1 | (0.1) | 0 | (0) | ||
| Hypertension prior to pregnancy | None | 870 | (93.3) | 1,220 | (99) | |
| Yes | 59 | (6.3) | 6 | (0.5) | <0.001 | |
| Missing | 3 | (0.3) | 6 | (0.5) | ||
| Pre-existing diabetes | None | 858 | (92.1) | 1,211 | (98.3) | |
| Yes | 74 | (7.9) | 15 | (1.2) | <0.001 | |
| Missing | 0 | (0) | 6 | (0.5) | ||
| Insulin dependent | Yes | 21 | (2.3) | 5 | (0.4) | 0.062 |