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Table 2 Model performance for the different outcomes and day of IMV

From: Risk factors for adverse outcomes during mechanical ventilation of 1152 COVID-19 patients: a multicenter machine learning study with highly granular data from the Dutch Data Warehouse

  Overall Day 1 Day 7 Day 14
ICU mortality (AUROC ± 95% confidence interval)
Decision tree 0.695 ± 0.027 0.668 ± 0.042 0.718 ± 0.013 0.739 ± 0.051
Logistic regression 0.744 ± 0.023 0.710 ± 0.035 0.766 ± 0.024 0.782 ± 0.028
XGBoost 0.774 ± 0.023 0.732 ± 0.04 0.806 ± 0.025 0.817 ± 0.013
ICU-free days (R2 ± 95% confidence interval)
Lasso 0.118 ± 0.009 0.086 ± 0.024 0.147 ± 0.016 0.067 ± 0.100
Ridge 0.179 ± 0.050 0.140 ± 0.065 0.196 ± 0.071 0.229 ± 0.081
XGBoost 0.212 ± 0.028 0.148 ± 0.029 0.267 ± 0.090 0.263 ± 0.077
Ventilator-free days (R2 ± 95% confidence interval)
Lasso 0.169 ± 0.015 0.112 ± 0.012 0.209 ± 0.050 0.231 ± 0.024
Ridge 0.217 ± 0.038 0.147 ± 0.018 0.263 ± 0.108 0.303 ± 0.039
XGBoost 0.250 ± 0.033 0.160 ± 0.019 0.319 ± 0.080 0.352 ± 0.038
  1. Model performance is shown for ICU mortality, ventilator-free days at day 30, and ICU-free days at day 30 across the days of IMV
  2. AUROC area under the receiver operating characteristic