Table 1 Socio-demographic characteristics of patients with COPD examined in function of the presence or the absence of associated heart disease
Parameter | Patients without heart disease (n = 7,620) | Patients with heart disease (n = 1,770) | p |
|---|---|---|---|
Age (mean ± SD) | 65.92 ± 9.56 | 73.73 ± 8.29 | < 0.05 |
Gender: Male (%) | 75.0 | 78.9 | < 0.05 |
Labour status: | < 0.05 | ||
Inactive (%) | 73.5 | 93.4 | |
Active (%) | 26.5 | 6.6 | |
Level of education: | |||
No education (%) | 19.4 | 26.7 | < 0.05 |
Primary (%) | 56.9 | 55.7 | |
Secondary (%) | 18.2 | 13.4 | |
University (%) | 5.6 | 4.1 |