| Age group | Sex | Total | |
| Male | Female | ||
| Less than 20 years | 0 (0.0%) | 1 (10.0%) | 1 (2.0%) |
| 20 to 40 years | 9 (22.5%) | 0 (0.0%) | 9 (18.0%) |
| 40 to 60 years | 23 (57.5%) | 6 (60.0%) | 29 (58.0%) |
| More than 60 years | 8 (20.0%) | 3 (30.0%) | 11 (22.0%) |
| Total | 40 (100.0%) | 10 (100.0%) | 50 (100.0%) |
| Mean ± SD | 50.78 ± 13.68 | 53.30 ± 16.11 |
|