Age | ≥ 55 | 58 (58%) |
 | < 55 | 42 (42%) |
Sex | Male | 41 (41%) |
 | Female | 59 (59%) |
Education | Illiterate | 3 (3%) |
 | Literate only | 3 (3%) |
 | Elementary school | 24 (24%) |
 | High school | 42 (42%) |
 | College and above | 28 (28%) |
Social health insurance | Yes | 90 (90%) |
 | No | 10 (10%9 |