Survival of Preterm Singleton Deliveries: A Population-Based Retrospective Study

Table 2

Incidence of later complications (rates per 1000 live births) in preterm and term births.

Labor complication	Preterm	Term	value
Anemia	1,047 (17.58)	6,280 (10.97)	<0.001
Eclampsia	131 (2.20)	320 (0.56)	<0.001
Preeclampsia	5,075 (85.20)	19,143 (33.43)	<0.001
Insulin-dependent diabetes	692 (11.62)	2,799 (4.89)	<0.001
Other forms of diabetes mellitus	1,545 (25.94)	11,550 (20.17)	<0.001
Chronic hypertension	974 (16.35)	3,894 (6.80)	<0.001
Placental abruption	2,183 (36.65)	2,423 (4.23)	<0.001
Placenta previa	978 (16.42)	1,323 (2.31)	<0.001
Cesarean section	12,075 (202.72)	71,276 (124.46)	<0.001
Renal disease	264 (4.43)	1,099 (1.92)	<0.001
Rh sensitization	362 (6.08)	2,943 (5.14)	0.003