Table 3

Coefficients of logistic regression models predicting survival to term, based on 1434 Northern preterm liveborn babies

Log oddsSEzp ValueLog oddsSEzp Value
Intercept−5313−4.0<0.001−5213−4.0<0.001
Gestation (weeks)3.50.993.5<0.0013.40.983.5<0.001
Gestation2−0.0520.018−2.80.005−0.0510.018−2.80.005
Base deficit (mmol/l)−0.110.020−5.6<0.001−0.110.019−5.8<0.001
Weight z score0.190.121.60.1
Weight z score2−0.120.082−1.50.1
Area under ROC curve0.8900.889
Hosmer–Lemeshow test p value0.80.8
  • ROC, receiver operating characteristic.