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Table 2 Cut-off values of CURB-65, APACHE II, and MuLBSTA for predicting the risk of noninvasive ventilator support, invasive ventilator support, and mortality

From: Pneumonia scoring systems for severe COVID-19: which one is better

  Cut-off value Youden index ROC Area Sensitivity Specificity
Noninvasive ventilator support
 CURB-65 score 1.5 48.00 0.7493 0.6818 0.6452
 APACHE II score 9.5 76.92 0.9459 1.0000 0.7941
 MuLBSTA score 8.5 32.62 0.7560 0.6667 0.6923
Invasive ventilator support
 CURB-65 score 2.5 54.69 0.8561 0.5556 0.7143
 APACHE II score 12.5 83.93 0.9297 0.9286 0.9231
 MuLBSTA score 10.5 73.78 0.9235 0.6800 0.8929
Death
 CURB-65 score 2.5 46.11 0.7829 0.5833 0.7805
 APACHE II score 11.5 73.83 0.9046 0.6190 0.9063
 MuLBSTA score 13.5 94.59 0.9856 0.8462 0.8750
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