Table V. Demographic and clinical characteristics of women with PTL who delivered at term, women at term not in labor and those with unexplained fetal death at preterm and term gestation.

	PTL who delivered at term n = 92	Preterm unexplained fetal death n=20	p	Women at term not in labor n = 37	unexplained fetal death at term n=5	pβ
Age (years)	22 (15-39) α	27.5(18-41)	0.04*	27 (14-4)	24.0 (18-30)	0.6
GA at amniocentesis (weeks)	32.1 (20.3-36.0)	29.4 (20.6-36.0)	0.02*	39.0 (37.0-42.0)	39.4 (37.6-40.6)	0.3
GA at delivery (weeks)	38.7(37-43)	29.4 (20.6-36.7)	<0.001*	39.0 37-42)	39.4 (37.6-40.7)	0.3
Birthweight (grams)	3,250 (2,630-4,750)	992 (140-2,370)	<0.001*	3,260(2,840-4,530)	3,487 (2,450-5,755)	0.7
Birthweight <10th percentile	0	11 (55%)	<0.001*	0	1 (20%)	0.1

Value expressed as median (range) or number (percent)

GA: gestational age; PTL: preterm labor with intact membrane

^βcompared between women at term no labor and unexplained fetal death at term

^αn= 81;

^*p<0.05