Table 1.

Participant Characteristics n (%)

Characteristic	Total	Male	Female
Gender	448 (100)	222 (49.6)	226 (50.4)
Age (Mean, S.D.)	11.97 (1.10)	12.06 (0.79)	11.89 (1.33)
Race
Black/ African American	432 (96.6)	210 (48.6)	218 (50.5)
White and Other	16 (3.4)	9 (60.0)	6 (40.0)
Treatment Status
Intervention	230 (51.2)	118 (51.3)	108 (47.0)
Control	218 (48.8)	101 (46.1)	116 (53.0)
Enrollment Cohort
2004-2005	214 (47.8)	114 (52.7)	97 (44.9)
2005-2006	234 (52.2)	105 (44.5)	127 (53.8)
Family Structure
Two Adults	323 (71.9)	169 (52.0)	159 (48.9)
One Adult	125 (28.1)	50 (39.4)	65 (51.2)