Table 2.

Moving to Opportunity Outcome and Mediator Descriptive Statistics (at Interim, 2001–2002), among Boys 10–16 Years Old at Baseline.

	Treatment			Control
Outcomes	N	Mean	SD	N	Mean	SD	p
Risky Behavior Index	510	0.23	0.26	201	0.18	0.22	0.01
Risky Substance Use	522	0.15	0.28	213	0.09	0.21	0.001
Risky Sexual Behavior	503	0.35	0.37	199	0.31	0.34	0.18
Mediators	N	Mean	SD	N	Mean	SD
Peer Drug Use (binary)	487	0.46	0.61	198	0.32	0.58	0.01
Peer Gang Membership (binary)	506	0.13	0.41	204	0.21	0.49	0.04
Friends in Baseline Neighborhood (binary)	515	0.66	0.58	212	0.73	0.54	0.04
Peer Weapon Use (binary)	500	0.17	0.46	207	0.15	0.44	0.35
Peer Involvement in School Activities (binary)	512	0.66	0.57	200	0.70	0.57	0.16
Number of Friends (count)	534	7.24	7.70	216	7.23	7.92	0.78