Table 1.

Characteristics of survivors with and without neurodevelopmental data at age 3 years

		With neurodevelopmental data at age 3 years		Without neurodevelopmental data at age 3 years
		n = 135		n = 40
Gestational age, weeks		26.0 (24.9–27.0)		25.7 (24.4–26.9)
Birth weight, g		796 (636–922)		764 (660–878)
Small for gestational age		20 (14.8)		5 (12.5)
Sex, male		71 (52.6)		25 (62.5)
Antenatal corticosteroids		122 (90.4)		36 (90.0)
CRIB II score		11 (9–13)		12 (9–13.5)
Births after amino acid dosage protocol changes		104 (77.0)		32 (80.0)
Intraventricular hemorrhage		36 (26.7)		18 (45.0)
MWL category
>15%		40 (29.6)		13 (32.5)
5–15%		71 (52.6)		23 (57.5)
<5%		24 (17.8)		4 (10.0)

Abbreviations: CRIB, Clinical Risk Index for Babies; MWL, maximum weight loss

Note: Data are expressed as n (%) or median (interquartile range)