Subjects n | Mortality rate % | Hazard ratio tiotropium/control | 95% CI | |
On treatment | ||||
Continuing smokers | 846 | 16.4 | 1.2 | 0.85–1.69 |
Intermittent smokers | 1545 | 10.0 | 0.87 | 0.63–1.19 |
Continuing ex-smokers | 3534 | 13.3 | 0.79 | 0.66–0.95 |
Vital status at 4 yrs | ||||
Continuing smokers | 846 | 18.4 | 1.24 | 0.90–1.70 |
Intermittent smokers | 1545 | 11.2 | 0.85 | 0.63–1.14 |
Continuing ex-smokers | 3534 | 16.2 | 0.81 | 0.69–0.96 |
Vital status at 4 yrs +30 days | ||||
Continuing smokers | 846 | 18.8 | 1.24 | 0.90–1.70 |
Intermittent smokers | 1545 | 11.8 | 0.90 | 0.67–1.20 |
Continuing ex-smokers | 3534 | 16.4 | 0.83 | 0.71–0.98 |