Table 1 Characteristics of the study population and control group
Features | Study group n = 1525 | Control group n = 1544 |
|---|---|---|
Percentage of women | 49.4 | 48.8 |
Mean age (years) | 52.7 ± 11.9 | 50.5 ± 12.4 |
Smoking-current or past (%) | 1115 (73.1) | 689 (44.6) |
Higher education | 368 (24.1) | 450 (29.1) |
Living in rural area | 412 (27.1) | 471 (30.5) |