Table 2 Univariate and multivariate analysis of predictive factors for SAD
From: Small airway dysfunction in Chinese patients with idiopathic pulmonary fibrosis
Characteristics | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
OR (95% CI) | p | OR (95% CI) | p | |
Age | 1.01 (0.98–1.03) | 0.597 | 0.99 (0.94–1.05) | 0.776 |
Males | 0.87 (0.50–1.51) | 0.623 | 5.94 (1.04–33.97) | 0.045 |
Smoking | ||||
Non-smoker | Reference | Reference | ||
Current smoker | 1.98 (1.18–3.31) | 0.010 | 2.79 (0.62–12.60) | 0.183 |
Former smoker | 1.14 (0.70–1.86) | 0.594 | 2.41 (0.61–9.58) | 0.210 |
COPD | 3.74 (1.50–9.31) | 0.005 | 3.97 (0.32–49.32) | 0.284 |
Moist rales | 1.83 (1.13–2.98) | 0.015 | 2.61 (0.82–8.27) | 0.103 |
FEV1, % predicted | 0.95 (0.94–0.97) | < 0.0001 | 0.89 (0.86–0.93) | < 0.0001 |
FEV3/FVC, % | 0.73 (0.66–0.80) | < 0.0001 | 0.53 (0.42–0.66) | < 0.0001 |
NLR | 1.12 (1.03–1.23) | 0.012 | 1.07 (0.69–1.67) | 0.760 |
PLR | 1.01 (1.00–1.01) | < 0.0001 | 1.00 (0.99–1.02) | 0.563 |
LMR | 0.87 (0.76–1.00) | 0.045 | 1.05 (0.76–1.44) | 0.776 |
PaO2 | 0.97 (0.96–0.99) | 0.001 | 1.00 (0.97–1.04) | 0.849 |
FiO2 | 1.04 (1.01–1.06) | 0.006 | 0.97 (0.82–1.14) | 0.682 |