Table 1.

Sample characteristics.

Variable
Sex
%Male	47.0%
%Female	53.0%
Mean age (SD)(range)	14.19 (3.33) (8–21)
Maternal education in years (SD) (range)	14.28 (2.43) (8–20)
Ethnicity
% White	46.50%
% Black	43.13%
% Other	10.37%