Table 2.
Diagnostic reliability of clinical red flags for RA-ILD.
| Variables | Sensitivity | Specificity | PPV | NPV | Accuracy | p-value |
|---|---|---|---|---|---|---|
| Dyspnea, (%) | 63.5 | 60 | 60 | 63.5 | 61.7 | 0.0203 |
| Cough, (%) | 57.7 | 54.6 | 54.6 | 57.7 | 56.1 | 0.2474 |
| Crackles, (%) | 66.7 | 57.4 | 47.3 | 75 | 60.1 | 0.0265 |
| Dyspnea or cough, (%) | 62 | 63.6 | 71 | 53.4 | 59.6 | 0.0111 |
| Dyspnea or crackles, (%) | 63.3 | 63.8 | 69.1 | 57.7 | 63.5 | 0.0066 |
| Cough or crackles, (%) | 57.1 | 55 | 58.1 | 53.9 | 56.1 | 0.2481 |
| Dyspnea and cough, (%) | 58.5 | 53 | 43.6 | 67.3 | 55.1 | 0.3202 |
| Dyspnea and crackles, (%) | 67.7 | 55.3 | 38.2 | 81 | 58.9 | 0.0351 |
| Cough and crackles, (%) | 64.5 | 54 | 36.4 | 79 | 57 | 0.092 |
| Dyspnea and cough and crackles, (%) | 64.3 | 53.2 | 32.7 | 81 | 56.1 | 0.1284 |
Significant p values are indicated in bold.