Table 2.

Demographic characteristics.^a

Characteristics		Tb1 participants (n=398), n (%)		T2 participants (n=559), n (%)
Age (years)
	11-12	48 (12)	37 (7)
	13-15	187 (47)	260 (47)
	16-18	133 (33)	198 (35)
	≥19	30 (8)	64 (11)
Genderc
	Young females	256 (64)	423 (76)
	Young males	104 (26)	71 (13)
	Not reported or missing	38 (10)	65 (12)

^aPercentages may not add up to 100% due to rounding.

^bT: time point.

^cThe three-response options for gender were “female,” “male,” and “prefer not to say.”