Table 1. Age and gender distribution of study group.

Group age (years)	Gender		Total
	Male	Female
11–20	4	13	17
21–30	34	17	51
31–40	19	25	44
41–50	8	8	16
51–60	2	−	2
Total	67 (51.5%)	63 (48.5%)	130 (100%)