Table 1. General characteristics of the study population.
| Variable | n = 40 (%) |
| Age (in years) | |
| 18-40 | 13 (32.5) |
| 41-60 | 20 (50.0) |
| 61-80 | 7 (17.5) |
| Gender | |
| Male | 16 (40.0) |
| Female | 24 (60.0) |
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