Table 2. Patient sociodemographic and clinical data in the control and intervention groups.

Variable	Intervention group (n=45)	Control group (n=46)	Test	t/χ2	p-value
Age (years), mean ± SD	15.9±5.2	16.2±4.9	t	0.283	0.778
Gender (n), female/male	17/28	18/28	χ2	0.018	0.895
Education (years), mean ± SD	8.4±3.3	8.3±3.1	t	0.149	0.882
Surgery (n), yes/no	40/5	41/5	χ2	0.001	0.971

SD = standard deviation.