Table 1.

Demographic characteristics.

Variable	M ± SD or N (%)
Age (years)	13.9 ± 2.4
Sex
Male	16 (59)
Female	11 (41)
Race
White	24 (89)
Black	2 (7)
Other	1 (4)
Ethnicity
Hispanic	2 (9)
Non-hispanic	21 (91)