Table 1

Survival of infants of ⩽ 32 weeks gestation, admitted for neonatal care, at 28 days of age and 36 weeks corrected gestation

Year No of infants admitted for NIC No of survivors at 28 days (%) No of survivors at 36 weeks corrected gestation (%) Comparison period Survival to 28 days adjusted for birth weight and gestation OR (95% CI) 36 weeks survival adjusted for birth weight and gestation OR (95% CI)
1987802664 (83)663 (83)
1992856725 (85)710 (83)1987 : 19921.69 (1.23 to 2.33)1.45 (1.06 to 1.98)
1997934833 (89)826 (88)1992 : 19971.72 (1.22 to 2.38)1.90 (1.36 to 2.64)
  • Odds ratios for survival (at 28 days of age and 36 weeks corrected gestation) comparing 1987 with 1992 and 1992 with 1997, adjusted for changes in birth weight and gestational age, are also shown.

  • NIC, Neonatal intensive care.