From: Can exhaled NO fraction predict radiotherapy-induced lung toxicity in lung cancer patients?
>10 ppb increase in FeNO | Sensitivity | Specificity | Positive predictive value | Negative predictive value |
---|---|---|---|---|
Respiratory symptoms | 18% | 83% | 18% | 83% |
CT-scan images | 24% | 86% | 45% | 70% |
Respiratory symptoms and/or CT-scan images | 22% | 87% | 55% | 61% |