Mothers ≤ 39 n = 71,472 | Mothers 40–44 n = 35,429 | Mothers ≥ 45 n = 2229 | p-value1 | p-value2 | p-value3 | p-value4 | ||||
---|---|---|---|---|---|---|---|---|---|---|
n | % | n | % | n | % | |||||
Pre-eclampsia/eclampsia | < 0.001 | < 0.001 | < 0.001 | < 0.001 | ||||||
Yes | 1776 | 2.5 | 1365 | 3.9 | 146 | 6.6 | ||||
Gestational diabetes | < 0.001 | < 0.001 | < 0.001 | < 0.001 | ||||||
Yes | 935 | 1.3 | 917 | 2.6 | 86 | 3.9 | ||||
Gestational hypertension | < 0.001 | < 0.001 | < 0.001 | 0.017 | ||||||
Yes | 679 | 1.0 | 549 | 1.5 | 49 | 1.2 | ||||
Premature contractions | 0.008 | 0.011 | 0.055 | 0.169 | ||||||
Yes | 229 | 0.31 | 82 | 0.2 | 2 | 0.1 | ||||
Infection | 0.966 | 0.815 | 0.925 | 0.873 | ||||||
Yes | 200 | 0.3 | 102 | 0.3 | 6 | 0.3 | ||||
Haemorrhage, prepartum | 0.910 | 0.525 | 0.677 | 0.509 | ||||||
Yes | 25 | 0.0 | 11 | 0.0 | 1 | 0.0 | ||||
Mode of delivery | < 0.001 | < 0.001 | < 0.001 | < 0.001 | ||||||
Caesarean section (elective) | 5328 | 7.5 | 4931 | 13.9 | 455 | 20.4 | ||||
Caesarean section (emergency) | 4931 | 6.9 | 4249 | 12.0 | 370 | 16.6 | ||||
Instrumental deliveryb | 3592 | 5.0 | 2255 | 6.4 | 118 | 5.3 | ||||
Epidural | < 0.001 | < 0.001 | < 0.001 | 0.001 | ||||||
Yes | 14,454 | 20.2 | 6809 | 19.2 | 363 | 16.3 | ||||
Haemorrhage, intrapartum | < 0.001 | < 0.001 | < 0.001 | < 0.001 | ||||||
Yes | 1242 | 1.7 | 1206 | 3.4 | 124 | 5.5 | ||||
Haemorrhage, postpartum | < 0.001 | < 0.001 | < 0.001 | 0.010 | ||||||
Yes | 3013 | 4.2 | 1658 | 4.7 | 131 | 5.9 | ||||
Paracervical block a | 0.571 | 0.296 | 0.803 | 0.973 | ||||||
Yes | 922 | 1.5 | 371 | 1.4 | 20 | 1.4 | ||||
Pethidine a | 0.019 | 0.013 | 0.258 | 0.063 | ||||||
Yes | 1738 | 2.8 | 667 | 2.5 | 47 | 3.3 | ||||
Pudendal block a | < 0.001 | < 0.001 | 0.402 | 0.617 | ||||||
Yes | 1446 | 2.4 | 771 | 2.9 | 38 | 2.7 |