Table 3

Estimates of systematic variation between units in severe IVH rates, 20th centile rate, and number of cases that might be preventable

Predictor variables adjusted forvApproximate SE(v)20th centile ratePotential cases of severe IVH prevented
GA=gestational age; transfer=transfer after birth to hospital with neonatal intensive care unit.
Sex, transfer, GA0.3120.0685.8554
Sex, transfer, GA, 1 min Apgar score0.3140.0785.8653
Sex, transfer, GA, 1 min Apgar score, steroids0.3420.0855.7460