Multivariate adjusted hazard ratios4-150 for all cause mortality during 1974–94 by selected variables
| Variable | Hazard ratio (95% CI) | p Value |
| Model 14-151 | ||
| Smoking status | <0.001 | |
| Never | 0.62 (0.50 to 0.77) | <0.001 |
| Past at the baseline | 0.58 (0.45 to 0.75) | <0.001 |
| Permanent quitters | 0.73 (0.59 to 0.89) | 0.002 |
| Intermittent quitters | 0.73 (0.53 to 1.00) | 0.048 |
| Continuous | 1.00 | – |
| Baseline pulmonary function | 0.82 (0.72 to 0.94) | 0.005 |
| Model 24-152 | ||
| Smoking status | 0.013 | |
| Never | 0.72 (0.57 to 0.90) | 0.004 |
| Past at the baseline | 0.68 (0.52 to 0.88) | 0.004 |
| Permanent quitters | 0.80 (0.65 to 0.99) | 0.039 |
| Intermittent quitters | 0.80 (0.58 to 1.09) | 0.160 |
| Continuous | 1.00 | – |
| Baseline pulmonary function | 0.76 (0.66 to 0.87) | <0.001 |
| Decline in FEV0.75 | <0.001 | |
| Slow | 1.00 | – |
| Intermediate | 1.24 (1.02 to 1.52) | 0.030 |
| Rapid | 1.73 (1.41 to 2.11) | <0.001 |
↵4-150 Cox's proportional hazards regression model.
↵4-151 Including the following variables: age, baseline pulmonary function, body mass index, diastolic blood pressure, total cholesterol, smoking status, and coronary heart disease.
↵4-152 Including the following variables: age, baseline pulmonary function, body mass index, diastolic blood pressure, total cholesterol, smoking status, coronary heart disease, and the tertile of FEV0.75decline.