Table 2.
Chest radiograph test performance characteristics
| Mention of ILD on chest radiograph | ILD by HRCT |
||
|---|---|---|---|
| (+) | (−) | ||
| (+) | 114 | 13 | |
| (−) | 66 | 167 | |
| Test characteristic (95% CI) | |||
| Sensitivity | 0.63 (0.56–0.70) | ||
| Specificity | 0.93 (0.88–0.96) | ||
| Receiver–operator curve area | 0.78 (0.74–0.82) | ||
| Positive predictive value | 0.90 (0.83–0.94) | ||
| Negative predictive value | 0.72 (0.65–0.77) | ||
| Positive likelihood ratio | 8.77 (5.13–14.98) | ||
| Negative likelihood ratio | 0.40 (0.32–0.48) | ||
Definition of abbreviations: CI = confidence interval; HRCT = high-resolution computed tomography; ILD = interstitial lung disease.