Table 1.

Perinatal characteristics and body size of study population

	Study population (n = 1,356)
Gestational age (weeks)	26.4 ± 1.1
Birthweight (grams)	899.6 ± 189.7
Birth length (cm)	34.3 ± 2.6
Birth head circumference (cm)	24.1 ± 1.7
Male sex	701 (51.7)
Maternal diabetes mellitus	97 (7.2)
Oligohydramnios	151 (12.3)
Preterm premature rupture of membrane	584 (43.4)
Multiple birth	404 (29.8)
Maternal hypertension	143 (10.6)
Postmenstrual age at discharge (weeks)	39.9 ± 3.2
Weight at discharge (grams)	2824.2 ± 637.3
Length at discharge (cm)	46.1 ± 3.5
Head circumference at discharge (cm)	32.9 ± 2.1

Values are expressed as number (%) or mean ± standard deviation