Table 5.

The descriptive statistics of the males’ and females’ age by CVS

CVS	N		Average age (years)		Age range (years
	Female	Male	Female (X ± SD)	Male (X ± SD)	Male	Female
1	33	35	8.79 ± 0.78	9.03 ± 0.98	8–12	8–10
2	11	31	9.73 ± 1.01	10.71 ± 1.13	8–12	8–12
3	18	28	11.17 ± 0.62	12.86 ± 0.89	11–14	10–12
4	27	22	12.63 ± 1.08	14.41 ± 0.80	13–16	11–15
5	19	17	13.84 ± 0.76	15.71 ± 0.47	15–16	13–15
6	42	17	16.05 ± 0.90	16.88 ± 0.33	16–17	14–17