Table 3 Mortality risks among smokers within GOLD stages 1–4 in individuals with symptoms of chronic bronchitis, with individuals from the same GOLD stage without symptoms of chronic bronchitis as reference*
From: Mortality in GOLD stages of COPD and its dependence on symptoms of chronic bronchitis
Gold stage | Chr Br (%) | Deaths | HR** | 95%CI | p-value |
|---|---|---|---|---|---|
Men | |||||
GOLD 1 | 44 (5.8) | 25 | 2.04 | 1.34–3.11 | 0.001 |
GOLD 2 | 55 (8.3) | 26 | 1.20 | 0.80–1.80 | 0.38 |
GOLD 3 | 17 (18.7) | 9 | 0.71 | 0.34–1.51 | 0.38 |
GOLD 4 | 5 (20.8) | 2 | 0.41 | 0.09–1.87 | 0.25 |
Women | |||||
GOLD 1 | 4 (2.4) | 1 | 1.58 | 0.22–11.79 | 0.66 |
GOLD 2 | 17 (8.1) | 7 | 3.16 | 1.38–7.23 | 0.006 |
GOLD 3 | 7 (21.2) | 3 | 2.19 | 0.27–18.02 | 0.47 |
GOLD 4 | 3 (37.5) | 2 | 0.58 | 0.08–4.11 | 0.59 |