Adverse Pregnancy Outcomes | < 20 years | 20–29 years | 30–39 years | 40+ years | Total | P-valuea | |||||
---|---|---|---|---|---|---|---|---|---|---|---|
N | % | N | % | N | % | N | % | N | % | ||
Total | 907 | 100 | 4305 | 100 | 2960 | 100 | 337 | 100 | 8509 | 100 | |
Spontaneous preterm delivery | 0.546 | ||||||||||
  No | 736 | 81.1 | 3561 | 82.7 | 2417 | 81.7 | 275 | 81.6 | 6989 | 82.1 |  |
  Yes | 171 | 18.9 | 744 | 17.3 | 543 | 18.3 | 62 | 18.4 | 1520 | 17.9 |  |
Cesarean delivery (n = 8420) | < 0.001 | ||||||||||
  No | 725 | 80.8 | 3045 | 71.6 | 1731 | 58.9 | 158 | 47.2 | 5659 | 67.2 |  |
  Yes | 172 | 19.2 | 1206 | 28.4 | 1206 | 41.1 | 177 | 52.8 | 2761 | 32.8 |  |
Low birth weight | 0.037 | ||||||||||
  No | 659 | 72.7 | 3240 | 75.3 | 2147 | 72.5 | 242 | 71.8 | 6288 | 73.9 |  |
  Yes | 248 | 27.3 | 1065 | 24.7 | 813 | 27.5 | 95 | 28.2 | 2221 | 26.1 |  |