Table 3.

Mediated effect of peer-level variables on violence trajectories

Mediator	Indirect Effect (ab)	z	SE	Percent Mediated
Hispanic males
Peer alcohol use
Alcohol Use	0.376	2.17*	0.18	14.5
Marijuana Use	0.486	1.96+	0.25	18.7
Other Drug Use	0.427	1.52	0.28	16.4
Depression	0.063	2.32*	0.08	2.4
Group Fighting	0.443	2.20*	0.20	17.1
Baseline Violence	0.464	2.17*	0.21	17.8
Total				86.9
Peer marijuana use
Alcohol Use	0.219	2.26*	0.10	10.0
Marijuana Use	0.482	2.12*	0.23	21.9
Other Drug Use	0.329	1.96+	0.17	14.9
Depression	0.124	2.49*	0.05	5.6
Group Fighting	0.176	0.82	0.21	8.0
Baseline Violence	0.404	2.21*	0.18	18.4
Total				79.0
Hispanic females
Urban neighborhood
Alcohol Use	0.668	2.46*	0.03	24.9
Group Fighting	0.043	2.64**	0.02	15.9
Baseline Violence	0.051	1.63	0.03	18.9
Total				59.7
Peer Alcohol Use
Alcohol Use	0.316	2.65**	0.12	23.6
Group Fighting	0.153	2.35*	0.07	11.5
Baseline Violence	0.231	1.86+	0.12	17.3
Total				52.3
Peer marijuana use
Alcohol Use	0.356	2.38*	0.15	28.1
Group Fighting	0.168	2.45*	0.07	13.3
Baseline Violence	0.275	1.94+	0.14	21.7
Total				63.0

All models are adjusted for age and generation

(a): These mediated effects were generated in accordance with MacKinnon (2008). The percent mediation was generated using the formula: [(a*b/(a*b + c)] (MacKinnon, 2008)

⁺p<0.10

^*p<0.05