Table 1.

Sociodemographic characteristics of the respondents.

Variable	Frequency (n = 764)	Percent (100)
Age
10–13	18	2.4
14–16	503	65.8
17–19	243	31.8
Mean ± SD	15.87 ± 3.15
Sex
Male	491	64.3
Female	273	35.7
Social class
Upper class	422	55.2
Middle class	172	22.5
Lower class	170	22.3