TABLE 1.
Baseline characteristics of the patients (n=141)
| Characteristic | Result |
| Age years | |
| Median | 69 (60–74) |
| Range | 26–85 |
| Sex | |
| Female | 55 (39.0) |
| Male | 86 (61.0) |
| Smoking status | |
| Never smoker | 55 (39.0) |
| Current smoker | 23 (16.3) |
| Previous smoker | 63 (44.7) |
| Pulmonary function tests | |
| FEV1 L | 2.5 (2.0–2.9) |
| FEV1 % pred | 89.0 (76.0–98.0) |
| FVC L | 3.1 (2.6–3.7) |
| FVC % pred | 87.1 (77.8–102.0) |
| TLC L | 4.8 (4.1–5.6) |
| TLC % pred | 77.0 (68.2–86.0) |
| DLCO % pred | 57.0 (40.0–64.0) |
| 6MWD m | 435 (99–520) |
| Primary presumptive diagnosis prior to TBCB | |
| UIP/IPF | 49 (34.5) |
| NSIP | 23 (16.2) |
| HP | 17 (12.0) |
| CTD-ILD | 16 (11.3) |
| Unclassified ILD | 14 (9.9) |
| Unclassifiable ILD | 7 (4.9) |
| Other | 15 (10.6) |
| TBCB biopsy site | |
| Right upper lobe | 0 (0) |
| Right middle lobe | 2 (1.4) |
| Right lower lobe | 124 (87.9) |
| Left upper lobe | 0 (0) |
| Left lower lobe | 15 (10.6) |
Date are presented as n–n, n (%) or median (IQR) unless otherwise stated. FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; TLC: total lung capacity; DLCO: diffusing capacity of the lung for carbon monoxide; 6MWD: 6-min walk distance; TBCB: transbronchial cryobiopsy; UIP: usual interstitial pneumonia; IPF: idiopathic pulmonary fibrosis; NSIP: nonspecific interstitial pneumonia; HP: hypersensitivity pneumonitis; CTD-ILD: connective tissue disease-associated ILD.