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Table 2 Predictive validity for indirect standardization, logistic regression and multilevel random intercept approach respectively using the mean Brier score and AUC for assessing the predictive abilities of the respective model using the validation set

From: Comparison of three different methods for risk adjustment in neonatal medicine

  Indirect Standardization Logistic regression Multilevel
Variable Brier Score AUC Brier Score AUC Brier Score AUC
Mortality 0.070 0.896 0.113 0.935 0.109 0.936
In hosp. mortality 0.060 0.831 0.095 0.892 0.093 0.893
Late onset sepsis 0.068 0.788 0.067 0.804 0.067 0.803
NECa 0.023 0.716 0.024 0.694 0.024 0.694
sIVHb 0.050 0.765 0.049 0.786 0.049 0.786
BPDc 0.084 0.807 0.195 0.843 0.195 0.843
sROPd 0.015 0.765 0.016 0.773 0.016 0.773
  1. a NEC Necrotizing enterocolitis. Values based on imputed data
  2. b sIVH intra−/periventricular haemorrhage grade 3–4
  3. c BPD bronchopulmonary dysplasia
  4. d sROP retinopathy of prematurity grade 3 and above. Values based on imputed data