Final Cox regression model for death after lung function testing with reduced set of covariates (n = 404)
| Covariate . | B . | Hazard ratio (95% CI) . | P . |
|---|---|---|---|
| Age at PFT | 0.07 | 1.07 (1.04-1.10) | <.001 |
| Male | 0.74 | 2.09 (1.20-3.65) | .010 |
| White blood cell count (109/L) | 0.08 | 1.09 (0.98-1.20) | .096 |
| ACS rate post-PFT (no./y) | 2.34 | 10.39 (3.11-34.78) | <.001 |
| Pain rate post-PFT (no./y) | 0.14 | 1.15 (0.98-1.36) | .095 |
| Lactic dehydrogenase (mg/dL) | 0.002 | 1.002 (1.00-1.003) | .015 |
| FEV1% predicted* | 0.021 | 1.02 (1.00-1.04) | .037 |
| Covariate . | B . | Hazard ratio (95% CI) . | P . |
|---|---|---|---|
| Age at PFT | 0.07 | 1.07 (1.04-1.10) | <.001 |
| Male | 0.74 | 2.09 (1.20-3.65) | .010 |
| White blood cell count (109/L) | 0.08 | 1.09 (0.98-1.20) | .096 |
| ACS rate post-PFT (no./y) | 2.34 | 10.39 (3.11-34.78) | <.001 |
| Pain rate post-PFT (no./y) | 0.14 | 1.15 (0.98-1.36) | .095 |
| Lactic dehydrogenase (mg/dL) | 0.002 | 1.002 (1.00-1.003) | .015 |
| FEV1% predicted* | 0.021 | 1.02 (1.00-1.04) | .037 |
FEV1% predicted is reverse-coded so that lower values are associated with hazard ratios >1.