Table 1.

Age, sex, and body weights of the gestational controls and preterm neonates (non-IUGR and IUGR)

	Control (n = 32)	Preterm (n = 22)	Preterm + IUGR (n = 6)
Gestational age (weeks)	31.0 ± 0.8 (24 to 38)	27.9 ± 0.7* (24 to 35)	27.0 ± 0.7* (25 to 30)
Postnatal age (days)		18.3 ± 3.4 (2 to 42)	30.7 ± 12.5 (2 to 68)
Postconceptional age (weeks)	31.0 ± 0.8 (24 to 38)	30.0 ± 0.7 (24 to 38)	31.4 ± 1.8 (25 to 37)
Sex ratio (M:F)	16:16	13:9	3:3
Birth weight (g)	1619 ± 147	1228 ± 107	628 ± 108*#
Autopsy weight (g)	1642 ± 146	1468 ± 157	1150 ± 330

Data presented as mean ± SEM with data range in parentheses.

*P < 0.05 compared with control group;

^#P < 0.05 compared with preterm group.