. Author manuscript; available in PMC: 2011 Feb 1.

Published in final edited form as: Am J Obstet Gynecol. 2009 Dec 21;202(2):166.e1. doi: 10.1016/j.ajog.2009.10.704

Table 2.

Maternal age, pre pregnancy weight, height, BMI, gestational age at delivery, fetal and placental weight and umbilical arterial pH at delivery. Data are mean ± sem.

Clinical data	B <48	B ≥48	Control	Freamine
	N= 8	N = 5	N= 16	N= 10
Maternal age (years)	34 ± 1.7	35.4 ± 2	34 ± 0.2	32 ± 08
Maternal pre pregnancy weight (kg)	64.2 ± 4	63.1 ± 4.7	69.6 ± 1.5	69.3 ± 2
Maternal height (cm)	163.6 ± 2	169.4 ± 1.6	na	na
Maternal BMI (kg/m²)	24 ± 1.5	22.1 ± 2	na	22.9 ± 1.5
Gestational age at delivery (weeks)	33 ± 0.8	35.2 ± 0.4	38.5 ± 0.2	38.5 ± 0.2
Fetal weight (grams)	1763 ± 298	2119 ± 125	3248 ± 72	3173 ± 112
Placental weight (grams)	391 ± 101	621 ± 298	432 ± 22	440 ± 38
Umbilical artery pH	7.30 ± 0.01	7.31 ± 0.02	7.28 ± 0.01	7.29 ± 0.01

B <48: cases delivered within 48 hours from maternal betamethasone administration; B ≥48: cases delivered after at least 48 hours from maternal betamethasone administration. na= not available