Table 3 Maternal background data of current pregnancy
|  | AT deficiency n = 80 | PC deficiency n = 50 | PS deficiency n = 317 | Total n = 447 | Control n = 1,171,651 | ||
|---|---|---|---|---|---|---|---|
Age at delivery (mean ± SD, years old) | 30.5 ± 4.68 | 34.8 ± 4.81 | 34.5 ± 4.96 | 33.7 ± 4.92 | 32.4 ± 5.40 | ||
Height at delivery (mean ± SD, cm) | 158.4 ± 5.59 | 158.1 ± 15.7 | 158.0 ± 7.93 | 158.6 ± 5.53 | 157.8 ± 5.75 | ||
Body weight in early pregnancy (mean ± SD, kg) | 51.2 ± 7.96 | 56.0 ± 8.80 | 52.3 ± 7.55 | 52.5 ± 7.85 | 53.7 ± 9.70 | ||
Body weight at delivery (mean ± SD, kg) | 58.3 ± 8.01 | 63.2 ± 9.05 | 60.2 ± 8.47 | 60.2 ± 2.43 | 63.3 ± 9.81 | ||
GW at delivery (mean ± SD, weeks) | 37.6 ± 2.43 | 38.4 ± 7.05 | 37.9 ± 3.63 | 37.8 ± 3.27 | 38.1 ± 2.50 | ||
Body mass index at delivery |  < 18.5 | 14 | 2* | 27§ | 43§ (10.5%) | 188,452 (18.2%) | |
18.5 ≤  < 25.0 | 50 | 36 | 243§ | 329§ (80.2%) | 717,337 (69.2%) | ||
25.0 ≤  | 10 | 6 | 22‡ | 38* (9.3%) | 131,204 (12.7%) | ||
Mode of delivery | Vaginal | Single | 59 | 24* | 198 | 281 (62.9%) | 765,266 (65.3%) |
Multiple | 0 | 0 | 0 | 0 (0.0%) | 9348Â (0.8%) | ||
Cesarean section (scheduled) | Single | 11 | 12 | 60 | 83 (18.6%) | 178,654 (15.2%) | |
Multiple | 2 | 0 | 5 | 7 (1.6%) | 35,956 (3.1%) | ||
Cesarean section (emergency) | Single | 5* | 12* | 46 | 63 (14.1%) | 153,850 (13.1%) | |
Multiple | 0 | 0 | 4 | 4 (0.9%) | 28,577 (2.4%) | ||
Preterm delivery (22 ≤  < 37 GW) | 10 | 5 | 39 | 54 (12.1%) | 163,576 (14.0%) | ||
Spontaneous abortion (< 22 GW) | 2 (13, 19 GW) | 1 (19 GW) | 1 (20 GW) | 4 (0.9%) | no data | ||
Artificial abortion (< 22 GW) | 1 | 1 | 3 | 5 (1.1%) | no data | ||