Mixed model analysis on AA attendance indicated a main effect for Treatment [F (2, 476) = 3.04; p < .05], a main effect for Time [F (3, 476) = 1.41; p < .001], and a significant Treatment X Time interaction [F (6, 476) = 4.19; p < .05]. AA attendance in the NS condition averaged over 25 meetings in the prior 90 days at the 27 month point, versus just over 13 for CaseM participants, resulting in a significant contrast of NS v. CaseM [F(1, 476) = 6.07; p < .01]. The effect size of this contrast was d = 0.8. The two Network Support conditions did not differ from each other (see Figure 4, panel B).
