| Characteristic | N (%) |
| Age in years | |
| >60 years old | 21 (13.7) |
| 36 - 59 years old | 44 (29.1) |
| 19 - 35 years old | 28 (18.7) |
| <18 years old | 57 (38.5) |
| Total | 150 (100.0) |
| Gender | |
| Male | 122 (81.3) |
| Female | 28 (18.7) |
| Total | 150 (100.0) |
| Employment and social role | |
| Unemployed | 35 (21.3) |
| Employed | 44 (29.3) |
| Agriculture | 3 (2.0) |
| Industry | 1 (0.6) |
| Student | 32 (21.3) |
| Housewife | 1 (0.6) |
| Unknown | 34 (22.6) |
| Total patients in study | 150 (100.0) |