Table 1.

Demographical characteristics of the students (n = 1191) in the study

Characteristic	No. (%) of students
Sex:
male	574 (48.2)
female	617 (51.8)
Type of school:
three-year vocational	159 (13.4)
four-year vocational	659 (55.3)
grammar school	373 (31.3)
Student year:
first	259 (24.8)
second	316 (26.6)
third	325 (27.3)
fourth	253 (21.2)