Clinical and demographic characteristics of the study population (n = 60). Values are n (%) unless otherwise specified.
| Characteristics | Values |
|---|---|
| Clinical signs and symptoms | |
| Asymptomatic | 3 (5) |
| Dyspnea | 44 (73) |
| Cough | 11 (18) |
| Chest pain | 1 (1.7) |
| Velcro crackles | 44 (73) |
| Chest radiograph dominant pattern | |
| Reticular pattern | 41 (68.3) |
| Nodular | 2 (3.3) |
| Reticulonodular | 8 (13.3) |
| Infiltrates | 3 (5) |
| Normal lung parenchyma | 3 (5) |
| Fibrosis | 3 (5) |
| HRCT findings | |
| Reticular pattern | 17 (28) |
| Honeycombing (UIP pattern) | 23 (38) |
| Ground-glass opacities | 20 (33) |
| Bilateral infiltrates | 12 (20) |
| Mediastinal lymphadenopathy | 13 (21) |
| Echocardiogram | |
| Pulmonary hypertension | 28 (46) |
| Right heart failure | 3 (5) |
| Lung function tests, mean ± SD | |
| O2 saturation | 93.14 ± 3.75 |
| DLCO% | 48 ± 22 |
| TLC% | 66.6 ± 17.8 |
| FVC% | 72.9 ± 22.6 |
| 6-min walking distance, m | 332.6 ± 183 |
| Bronchoscopy, n = 23 | |
| BAL only | 9 (15) |
| TBB | 2 (3.4) |
| Cryobiopsy | 2 (3.4) |
| EBUS | 10 (16.7) |
HRCT: high-resolution computed tomography; UIP: usual interstitial pneumonia; TLC: total lung capacity; FVC: forced vital capacity; BAL: bronchoalveolar lavage; TBB: transbronchial biopsy; EBUS: endobronchial ultrasound.