FEV1/FVC (%) | Q1 | Q2 | Q3 | Q4 | LogCD14 | P trend |
---|---|---|---|---|---|---|
< 398.54 | 398.54~607.51 | 607.51~855.01 | > 855.01 |  | ||
< 75% / ≥75% | 194/252 | 157/292 | 116/332 | 116/332 |  | |
OR (95% CI) | reference | 0.70 (0.53, 0.91) | 0.45 (0.34, 0.60) | 0.45 (0.34, 0.60) | 0.54 (0.45, 0.64) | < 0.0001 |
Adjusted OR (95% CI) | reference | 0.83 (0.62, 1.11) | 0.53 (0.40, 0.72) | 0.59 (0.44, 0.79) | 0.63 (0.53, 0.76) | < 0.0001 |