Table 1 Clinical characteristic differences between patients with SAD and without SAD
From: Small airway dysfunction in Chinese patients with idiopathic pulmonary fibrosis
Characteristics | Without SAD n = 251 | With SAD n = 165 | p |
|---|---|---|---|
Age (years) | 64.89 ± 9.71 | 65.39 ± 8.83 | 0.598 |
Males | 210 (83.67) | 141 (85.45) | 0.623 |
Smoking | |||
Non-smoker | 81 (32.27) | 41 (24.85) | 0.019 |
Current smoker | 61 (24.30) | 61 (36.97) | |
Former smoker | 109 (43.43) | 63 (38.18) | |
Emphysema | 55 (21.91) | 41 (24.85) | 0.487 |
COPD | 7 (2.79) | 16 (9.70) | 0.003 |
PTE | 0 (0.00) | 2 (1.21) | 0.080 |
Pulmonary arterial hypertension | 22 (8.76) | 15 (9.09) | 0.909 |
Pulmonary infection | 47 (18.73) | 44 (26.67) | 0.055 |
Respiratory failure | 34 (13.55) | 28 (16.97) | 0.337 |
Asthma | 3 (1.20) | 2 (1.21) | 0.988 |