Table 1 Basic characteristics of included participants

Age group, number (%)

 20–29 years

3 (15.79%)

 30–39 years

11 (57.89%)

 ≥ 40 years

5 (26.32%)

Length of teaching, number (%)

 < 5 years

12 (63.16%)

 ≥ 5 years

7 (36.84%)

Sex, number (%)

 Male

2 (10.53%)

 Female

17 (89.47%)

Educational level, number (%)

 Above high school

14 (73.68%)

 High school or equivalent

5 (26.32%)