Table 4.

Observed and Predicted Rates of Survival to 5 Years for Very Preterm Children Offered Intensive Care Related to Common Combinations of Perinatal Variables, Averaged Over All Gestational Ages

Combination of Perinatal VariablesNo. birthsSurvival
ObservedPredicted*
N% (95% CI)% (95% CI)
ANS, girl, not SGA, multiple272385 (66, 96)88 (86, 91)
ANS, girl, not SGA, singleton614879 (66, 88)80 (78, 83)
ANS, boy, not SGA, multiple353189 (73, 97)77 (73, 80)
ANS, boy, not SGA, singleton754763 (51, 74)65 (62, 68)
No ANS, girl, not SGA, singleton372568 (50, 82)63 (57, 69)
No ANS, boy, not SGA, singleton492551 (36, 65)50 (46, 54)
No ANS, boy, not SGA, multiple181056 (31, 78)64 (58, 70)
  • ANS indicates antenatal steroids.

  • * Predicted from logistic regression.

    Hosmer-Lemeshow goodness-of-fit test, P = .75 , as described in “Methods.”