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Sensitivity, specificity, negative and positive predictive values, and diagnostic accuracy for two threshold values of RSBI and pO2/FiO2>250.
| Variable | RSBI≤130 | RSBI≤105 | pO2/FiO2>250 |
|---|---|---|---|
| Sensitivity | 40.4% | 94.1% | 76.9% |
| Specificity | 51.1% | 43.6% | 24.5% |
| Positive predictive value | 55.2% | 71.4% | 60.4% |
| Negative predictive value | 36.4% | 83.2% | 41.5% |
| Accuracy | 44.7% | 73.8% | 55.9% |
