Table 1.
Baseline demographics and clinical characteristics of IPF and non-IPF ILD from institutional registry
| Variables | IPF | Non-IPF ILD | p-values | ||
|---|---|---|---|---|---|
| patients | Results | patients | Results | ||
| Age at diagnosis (years) | 1108 | 69 (62–75) | 841 | 59 (50–68) | < 0.001 |
| Gender (% male) | 1108 | 652 (59%) | 841 | 318 (38%) | < 0.001 |
| Ethnicity (% Caucasian) | 1108 | 1007 (91%) | 841 | 712 (85%) | < 0.001 |
| Smoking – Never | 1054 | 361 (34%) | 443 | 193 (44%) | < 0.001 |
| Former | 655 (62%) | 224 (51%) | |||
| Current | 38 (4%) | 26 (6%) | |||
| Prevalence of lung cancer | 1108 | 31 (2.8%) | 841 | 16 (1.9%) | 0.20 |
| Mortality over observation period (%) | 1108 | 515 (47%) | 841 | 104 (12%) | < 0.001 |
Definition of abbreviations: IPF idiopathic pulmonary fibrosis, ILD interstitial lung disease. Mortality based on patient records as deceased at the time of the review of the registry data