Table 1 Demographic data for all recruited participants
Characteristic | No. of subjects | Per cent (%) |
|---|---|---|
Variable | N (404) | Â |
Median age (IQR) (years) | 54 (43–67) |  |
  < 40 years | 75 | 18.6 |
 40–49 years | 81 | 20.1 |
 50–59 years | 80 | 19.8 |
 60–69 years | 88 | 21.8 |
 70–79 years | 60 | 14.9 |
  ≥ 80 years | 20 | 5.0 |
Gender (%) | ||
 Male | 200 | 49.5 |
 Female | 204 | 50.5 |