Table 7.
Discrimination and calibration of oxygenation index models for ECMO mortality among neonates
Data | Patients | Discrimination | Calibration | |
---|---|---|---|---|
Hosmer-Lemeshow | ||||
AUC | Chi-Statistic | p-value | ||
Derivation (2008–2011) | 3,139 | 0.78 (0.76–0.79) | 7.93 | 0.44 |
Validation (2012–2013), complete data* | 1,109 | 0.77 (0.74–0.80) | 3.93 | 0.86 |
Validation (2012–2013) | 1,453 | 0.76 (0.73–0.79) | 2.96 | 0.94 |
AUC = area under the curve of the receiver operating characteristic curve
complete data = only those neonates in the dataset with complete data for retained variables are included