Table 3.

Characteristics of neonates at birth

Variable	Cohort I (n=153)Mean±SD, n (%)	Cohort II (n=258)Mean±SD, n (%)	P	Cohort III (n=153) Mean±SD, n (%)	P
Head circumference (cm)	33.5±1.30	33.7±1.40	0.135	33.6±1.2	0.324
Length (cm)	48.12±2.3	48·00±2.7	0.648	48.2±2.0	0.742
Gender
Male	84 (54.9)	127 (49.2)	0.266	70 (45.7)	0.108
Female	69 (45.1)	131 (50.8)		83 (54.3)
Mean birth weight (kg)	2.96±0.4	2.95±0.5	0.782	2.97± 0.43	0.817

SGA: Small for gestational age, SD: Standard deviation