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Table 3 Discrimination ability of the model in the test dataset using a 50% probability-of-intubation cut-off

From: Predictors of failure with high-flow nasal oxygen therapy in COVID-19 patients with acute respiratory failure: a multicenter observational study

Parameter Value (95% CI)
Sensitivity 83% (68-91%)
Specificity 89% (74-95%)
Positive predictive value 89% (76-96%)
Negative predictive value 82% (67-91%)
Positive likelihood ratio 7.3 (2.9-18.4)
Negative likelihood ratio 0.20 (0.09-0.38)
  1. CI confidence interval