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Table 2 Comparison of mortality prediction models in the study population (number = 304)

From: Prediction of mortality in adult patients with severe acute lung failure receiving veno-venous extracorporeal membrane oxygenation: a prospective observational study

Model Valid n AUC P- valuea Hosmer-Lemeshow test P- value
Pre-ECMO prediction     
SOFA score 303 0.611 (0.544-0.678) 0.027 <0.0001b
ECMOnet score 280 0.604 (0.537-0.671) 0.009 0.0002b
PRESERVE 289 0.685 (0.623-0.748) 0.12 0.004b
Model 1 284 0.746 (0.689-0.804) Reference 0.50
Day 1 prediction     
Model 2 263 0.786 (0.730-0.843) 0.026 0.73
  1. aPairwise comparisons of AUCs with Model 1 using DeLongs method (n = 241) [12]. bModified Hosmer-Lemeshow test comparing grouped mortality risk against the deciles of Model 1 predictions. AUC, area under receiver operating characteristics curve; ECMO, extracorporeal membrane oxygenation; SOFA, Sequential Organ Failure Assessment.