. Author manuscript; available in PMC: 2012 Oct 28.

Published in final edited form as: J Matern Fetal Neonatal Med. 2010 Jul;23(7):646–657. doi: 10.3109/14767050903301009

Table I.

Clinical characteristics of the study population

	Normal Pregnancy	Small for Gestational Age	Preeclampsia without SGA	Preeclampsia with SGA
	n = 134	n = 53	n = 54	n = 52
Maternal age (y)	25 (17–40)	24 (15–43)	24 (13–43)	23 (16–40)
Smoking^†	23 (17.2)	17 (32)^α ^β	6 (11.1)	8 (15.3)^γ
Drugs^‡	14 (10.6)	7 (13.4)	4 (7.4)	3 (5.7)
Nullipartiy	37 (27.6)	26 (49.1)^α	36 (66.6)^α	30 (57.6)^α
Gestational age at venipuncture (wks)	37.5 (20–41.7)	36.8 (25–39.7)	36.5 (23.4–42.4)	35.5 (25–41)
Gestational Age at delivery (wks)	39.2 (37–42.4)	37.1 (25–39.7)^α	36.4 (23.7–42.4)^α	35.6 (26.2–41.1)^α
Birthweight (g)	3345 (2610–4080)	2050 (300–2880)^α ^β	2195 (530–4460)^α	1770 (550–2880)^α ^β
Adjusted for birthweight gestational age (MOM)	−0.01 (−0.16 – 0.18)	−0.35 (−0.61 – −0.18)	−0.22 (−0.49 – 0.37)	−0.32 (−0.49 – −0.17)

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

^α

P < .05 compared with normal pregnancy

^β

P < .05 compared with preeclampsia without SGA

^γ

P < .05 compared with SGA

^†

normal pregnancy n= 133

^‡

normal pregnancy n= 132