Table 4.

GUSTO participants’ characteristics by birth weight group. Data are expressed as means (standard deviations) or number of participants (percentages).

Sample characteristics	Non-IUGRs (n = 299)	IUGRs (n = 28)	p
Birth weight (kg)a	3.20 (0.36)	2.55 (0.17)	<0.0001
Females (%)b	158 (52.8%)	15 (53.6%)	1.00
Gestational age (weeks)a	38.65 (1.06)	38.86 (1.21)	0.32
Maternal attained education below University (%)b	182 (61.7%)	23 (82.1%)	0.04
Family income below $6000 (%)b	190 (67.4%)	20 (76.9%)	0.38
Body mass index z-score at 48 months (kg/m2)a	0.19 (1.19)	−0.28 (1.01)	0.04

^aStudent’s t-test and ^bChi-square test.