Table 6 Cut-off for high risk of HFNC failure for change in POX-HR and post-HFNC POX-HR with > 90% specificity
Cut-off | Sensitivity (%) | Specificity (%) | NPV (%) | PPV (%) | Youden Index | |
|---|---|---|---|---|---|---|
Delta POX-HR | − 1.20 | 46.2% | 90.3% | 75.6% | 72.0% | 0.365 |
Post-HFNC POX-HR | 5.00 | 38.5% | 91.7.0% | 73.3% | 71.4.0% | 0.302 |