Table 3 Multivariate analysis assessing the relationship between different variables and probability of persistence
Variables | RR | CI 95% | p value |
|---|---|---|---|
Health related quality of life | |||
Activity | 0.972 | 0.934–1.011 | 0.161 |
Total | 0.945 | 0.894–0.998 | 0.041 |
Awareness about COPD severity and chronicity | |||
No | 1.00 | ||
Yes | 2.672 | 1.125–6.349 | 0.026 |
Visits to GP | |||
> 6 months | 1.00 | ||
≤ 6 months | 3.107 | 1.022–9.446 | 0.046 |
Smoking behaviour | |||
Current | 1.00 | ||
Former and never smoker | 2.515 | 1.010–6.260 | 0.048 |
Inhaler device type | |||
Other device | 1.00 | ||
Multi DPI | 0.341 | 0.133–0.877 | 0.026 |