Table 1 Participant demographic characteristics
| Study variables | Frequency | Percent (%) |
|---|---|---|
| Age (in years) | ||
| Mean +/− SD | 48.4 +/− 11.3 | |
| ≤ 20 years | 1 | 1.7 |
| 21–30 years | 3 | 5.1 |
| 31–40 years | 10 | 16.9 |
| 41–50 years | 19 | 32.2 |
| 51–60 years | 20 | 33.9 |
| > 60 years | 6 | 10.2 |
| Gender | ||
| Female | 28 | 47.5 |
| Male | 31 | 52.5 |
| Total | 59 | 100 |