Table 1.
Demographics of patients with connective tissue disease-associated with interstitial lung disease (CTD-ILD) and interstitial lung disease (ILD)-only
| Characteristic | CTD-ILD (n = 2491), n (%) | ILD-only, n = 12,787), n (%) |
|---|---|---|
| Sex | ||
| Men | 721 (28.9) | 6969 (54.5) |
| Women | 1770 (71.1) | 5818 (45.5) |
| Age | ||
| Median (Q1, Q3) | 56 (51, 60) | 65 (55, 67) |
| 40–49 | 472 (18.9) | 1667 (13.0) |
| 50–59 | 685 (27.5) | 2679 (21.0) |
| 60–69 | 753 (30.2) | 3535 (27.6) |
| 70–79 | 493 (19.8) | 3446 (26.9) |
| ≥ 80 | 88 (3.5) | 1460 (11.4) |
Summarized based on the diagnosis at the top of the lists of International Statistical Classification of Diseases and Related Health Problems, 10th edition (ICD-10) codes of respiratory diseases