Table 1. J1 participation according to age and sex.

Age at time of survey (years)	Sex
	Female		Male		All
	n	%	n	%	n	%
14	95	21.2	110	22.2	205	21.7
15	141	32.1	175	37	316	34.6
16	164	38.9	160	38	324	38.4
17	157	37.7	144	39.3	301	38.5
All	557	32.3	589	33.5	1146	32.9