Table 2 Results of breath analysis between patient groups
Group 1 | n = | Group 2 | n = | Dataset | AUC | 95% CI | Specificity | Sensitivity | Accuracy | NPV | PPV |
|---|---|---|---|---|---|---|---|---|---|---|---|
ILD | 108 | Asthma–COPD–Lung cancer | 108 | Training | 0.97 | 0.95–0.99 | 0.93 | 0.93 | 0.93 | 0.93 | 0.93 |
53 | 53 | Test | 0.99 | 0.97–1.00 | 0.89 | 1.00 | 0.94 | 1.00 | 0.90 | ||
ILD | 37 | Asthma | 44 | Training | 0.99 | 0.97–1.00 | 0.91 | 1.00 | 0.95 | 1.00 | 0.90 |
18 | 21 | Test | 1.00 | 1.00–1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | ||
ILD | 37 | COPD | 34 | Training | 0.97 | 0.97–1.00 | 1.00 | 0.86 | 0.93 | 0.87 | 1.00 |
18 | 16 | Test | 0.96 | 0.90–1.00 | 0.94 | 0.89 | 0.91 | 0.88 | 0.91 | ||
ILD | 37 | Lung cancer | 31 | Training | 1.00 | 1.00–1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
18 | 15 | Test | 0.98 | 0.94–1.00 | 0.89 | 1.00 | 0.94 | 1.00 | 0.88 | ||
COPD | 34 | Lung cancer | 31 | Training | 0.88 | 0.79–0.97 | 0.88 | 0.87 | 0.88 | 0.88 | 0.87 |
16 | 15 | Test | 0.97 | 0.90–1.00 | 1.00 | 0.93 | 0.97 | 0.94 | 1.00 | ||
COPD | 34 | Asthma | 44 | Training | 0.92 | 0.85–0.98 | 0.95 | 0.76 | 0.87 | 0.84 | 0.93 |
16 | 21 | Test | 0.90 | 0.79–1.00 | 0.86 | 0.88 | 0.86 | 0.90 | 0.82 | ||
IPF | 41 | COPD | 34 | Training | 0.88 | 0.80–0.96 | 0.71 | 0.98 | 0.85 | 0.96 | 0.80 |
20 | 16 | Test | 0.93 | 0.86–1.00 | 0.75 | 0.95 | 0.86 | 0.92 | 0.83 | ||
IPF | 41 | Lung cancer | 31 | Training | 0.91 | 0.85–0.98 | 0.98 | 0.68 | 0.85 | 0.80 | 0.95 |
20 | 15 | Test | 0.93 | 0.82–1.00 | 1.00 | 0.87 | 0.94 | 0.91 | 1.00 |