Table 1. Patient’s characteristics.
| Characteristics | Overall cases | IPF | CVD-IP/iNSIP | CHP | P value |
|---|---|---|---|---|---|
| Total number, n (%) | 180 | 57 [32] | 117 [65] | 6 [3] | |
| Age, years | 71.9±9.2 | 73.3±7.2 | 71.4±9.2 | 67.8±21.3 | 0.425 |
| Male sex, n (%) | 119 [66] | 49 [86] | 66 [56] | 4 [67] | <0.001 |
| CCIS | 2.5±2.2 | 2.6±2.0 | 2.5±2.2 | 1.5±1.2 | 0.418 |
| Pulmonary function tests | |||||
| FVC, %predicted | 93.9±18.7 | 93.5±18.5 | 94.1±19.2 | 92.8±10.8 | 0.993 |
| DLco, %predicted | 91.7±30.2 | 80.5±28.2 | 97.6±30.2 | 83.1±17.6 | 0.002 |
| Outcome | |||||
| Follow-up, days | 687±337 | 649±327 | 701±344 | 775±294 | 0.514 |
| Incidence of events, n (%) | 20 [11] | 10 [18] | 10 [9] | 0 [0] | 0.141 |
Incidence of events included ILD-related death or first acute exacerbation of ILD. CCIS, Charlson Comorbidity Index; CHP, chronic hypersensitivity pneumonia; CVD-IP, collagen vascular disease-related interstitial pneumonia; DLco, lung diffusing capacity for carbon monoxide; FVC, forced vital capacity; iNSIP, idiopathic nonspecific interstitial pneumonia; ILD, interstitial lung disease; IPF, idiopathic pulmonary fibrosis.