Table 1. Number of participants and mean age for adolescent males and females per age group.

			Age groups
	1		2		3
	10–12 years		13–15 years		16–19 years
	Males	Females	Males	Females	Males	Females
N	83	78	63	70	66	93
Age (M) SE	11.0 (0.09)	10.9 (0.09)	13.9 (0.10)	14.06 (0.10)	17.20 (0.12)	17.29 (0.09)