Table 1.
Characteristics of patients with idiopathic interstitial pneumonia
| Characteristic | Number |
|---|---|
| Total patients | 240 |
| Sex | |
| Female | 81 (34%) |
| Male | 159 (66%) |
| Age at initial visit (years), mean ± SD | 71 ± 8.8 |
| Follow-up period (days), mean ± SD | 382 ± 281 |
| Smoking history (BI > 100) | 139 (58%) |
| ILD pattern | |
| UIP | 65 (27%) |
| Possible UIP | 48 (20%) |
| Inconsistent with UIP | 80 (33%) |
| Diffuse alveolar damage | 7 (3%) |
| Organizing pneumonia | 40 (17%) |
| Outcome | |
| Acute exacerbation | 27 (11%) |
| Death | 32 (13%) |
| Treatment | |
| Corticosteroids | 96 (40%) |
| Immunosuppressant drugs | 15 (6%) |
| Anti-fibrotic drugs | 20 (8%) |
| MSA profile | |
| PL-7 | 16 (6.7%) |
| SRP | 13 (5.4%) |
| PL-12 | 9 (3.8%) |
| Mi-2 | 8 (3.3%) |
| OJ | 7 (2.9%) |
| EJ | 3 (1.3%) |
| Jo-1 | 1 (0.4%) |
BI, Brinkman Index; ILD, interstitial lung disease; MSA, myositis-specific antibodies; SD, standard deviation; UIP, usual interstitial pneumonia