Table 1

Baseline characteristics of the VICS cohort infants eligible for the NICHD outcome estimator

VICS 2005 Cohortn=%
Eligible for the NICHD calculator114
Outborn1513.1
Gestational age (completed weeks)
 22 weeks1210.5
 23 weeks2219.3
 24 weeks3732.5
 25 weeks4337.7
Birth weight
 401–500 g108.8
 501–600 g2421.1
 601–700 g4236.8
 701–800 g3026.3
 801–900 g65.3
 901–1000 g21.8
Male5144.7
Singleton8171.1
Maternal antenatal corticosteroids8978.1
  • NICHD, National Institute of Child Health and Human Development.