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Baseline characteristics of participants
| Variables | Number (%) |
|---|---|
| Age (year) | |
| < 40 | 4 (17) |
| 40-50 | 13 (54) |
| > 50 | 7 (29) |
| Gender | |
| Male | 15 (63) |
| Female | 9 (38) |
| Education level | |
| Associate diploma | 2 (9) |
| BS and MSc | 7 (29) |
| PhD/specialist | 15 (62) |
| Work experience | |
| < 15 | 4 (17) |
| 15 | 3 (13) |
| >15 | 17 (71) |
Bs: Bachelor of science; MSc: Master of Science; PhD: Doctor of philosophy.
