Probability of interstitial lung disease (ILD) as a function of neutrophils in suspected ILD
| Neutrophils % | Subjects n | A priori | A posteriori | |||
| <4 | 4–20 | 21–50 | >50 | |||
| Sarcoidosis | 239 | 33.7 | 42.4*** | 19.6*** | 19.5 | 19.2 |
| UIP | 112 | 15.8 | 7.3*** | 31.4*** | 22.0 | 26.9 |
| EAA | 66 | 9.3 | 9.1 | 10.3 | 12.2 | 0.0 |
| NSIP | 46 | 6.5 | 5.2 | 7.4 | 12.2 | 11.5 |
| Inflammatory disease | 76 | 10.7 | 7.7 | 13.2 | 12.2 | 38.5*** |
| Others | 171 | 24.1 | 28.3 | 18.1 | 22.0 | 3.9* |
| Total n | 710 | 439 | 204 | 41 | 26 | |
Data are presented as %, unless otherwise stated. UIP: usual interstitial pneumonia; EAA: extrinsic allergic alveolitis; NSIP: nonspecific interstitial pneumonia. *: p<0.05; ***: p<0.001 versus the respective apriori value