Characteristic | Total cohort AGA (n = 934) | Optimal AGA (oAGA) Bwp50–80 (n = 365) | Suboptimal AGA (sAGA) Bwp10–50 (n = 569) | P |
---|---|---|---|---|
Maternal age (years) | 31.6 ± 5.1(17–55) | 31.6 ± 5.1 (17–55) | 31.5 ± 5.1 (17–45) | 0.816 |
Primiparous (%) | 412 (44.4%) | 160 (44.2%) | 252 (44.6%) | 0.904 |
Smoking (%) | 89(11.8%) | 27 (9.2%) | 62 (13.6%) | 0.067 |
Height (m) | 1.67 ± 0.07(1.45–1.86) | 1.68 ± 0.07(1.49–1.86) | 1.67 ± 0.07 (1.45–1.86) | 0.362 |
BMI (kg/m2) | 25.0 ± 5.7(15.7–48.5) | 25.5 ± 5.5(16.7–48.3) | 24.7 ± 5.9 (15.7–48.5) | 0.164 |
Mode of conception | ||||
 spontaneous | 775 (91.7%) | 335 (91.8%) | 529 (93.0%) | 0.501 |
 Iui | 13(1.5%) | 4 (1.1%) | 9 (1.6%) | 0.536 |
 Icsi | 25(3.0%) | 8 (2.2%) | 17 (3.0%) | 0.462 |
 Ivf | 19(2.2%) | 9 (2.5%) | 10 (1.8%) | 0.454 |
 Ovulation induction | 13(1.5%) | 9 (2.5%) | 4 (0.7%) | 0.025 |
GA at birth (days) | 271.5 ± 12.8(212–295) | 271.0 ± 13.7(212–295) | 271.8 ± 12.2(215–295) | 0.350 |
GA <34wks (n) | 23 (2.5%) | 13(3.6%) | 10 (1.8%) | 0.088 |
GA 34-36wks (n) | 40(4.3%) | 15(4.1%) | 25(4.4%) | 0.870 |
GA >36wks (n) | 871(93.3%) | 337 (92.3%) | 534 (93.8%) | 0.423 |
Birth weight (g) | 3191.55 ± 450.6(1353–4125) | 3425.4 ± 421.6(1440–4125) | 3041.5 ± 402.3 (1353–3818) | < 0.001 |
Induction of labour (yes) | 205 (21.9%) | 89 (24.4%) | 116 (20.3%) | 0.168 |
Mode of delivery | ||||
 Spontaneous vaginal | 722 (77.3%) | 278 (76.2%) | 444 (78.0%) | 0.522 |
 Assisted vaginal | 124 (13.3%) | 47 (12.9%) | 77 (13.5%) | 0.843 |
 Intrapartum caesarean | 32 (3.4%) | 17 (3.0%) | 15 (4.1%) | 0.363 |
 Prelabour caesarean | 56 (6.0%) | 25 (6.8%) | 31 (5.4%) | 0.399 |