. Author manuscript; available in PMC: 2013 Mar 12.

Published in final edited form as: J Perinat Med. 2009;37(6):623–635. doi: 10.1515/JPM.2009.128

Table 1.

Clinical and demographic characteristics of the study population

	Normal Pregnancy (n=234)	SGA (n=78)	p
Maternal age (years)	28.0 (22.0–32.0)	24.0 (19.0–31.8)	0.004
Parity	1 (0–2)	2 (1–3)	NS
First trimester BMI (kg/m²)	24.9 (22.8–27.3)	25.9 (22.6–30.9)	NS
Gestational age at blood sampling (weeks)	32.7 (28.7–39.3)	34.5 (27.8–38.5)	NS
Gestational age at delivery (weeks)	39.9 (39.0–40.4)	38.5 (37.2–39.5)	NS
Birth weight (g)	3470 (3220–3700)	2452 (2140–2651)	<0.001

Values are expressed as median (interquartile range); SGA: Small for Gestational Age; NS: Not significant; BMI: Body Mass Index