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. Author manuscript; available in PMC: 2013 Dec 1.
Published in final edited form as: Arch Gen Psychiatry. 2012 Dec 1;69(12):1284–1294. doi: 10.1001/archgenpsychiatry.2012.449

Figure 2. (Panel). MTO Intervention Effects on Mean Difference in Psychological Distress 4–7 Years After Baseline, Modified by Gender & Health Vulnerability.

Figure 2

Figure 2

Panel 2a presents the Linear Regression Intent to Treat (ITT) estimates. Panel 2b presents adherence-adjusted estimates of intervention effects from 2nd stage instrumental variable (IV) analysis. The primary hypothesis test tested whether the intervention-health vulnerability interaction coefficient was significantly different from zero. Intervention-health vulnerability interaction results for ITT: B(SE)=.223(.092), p=.02, CI(.042, .404), and for IV: B(SE)=.478(.192), p=.01, CI(.102, .854). Models adjusted for covariates listed in Table 2, plus intervention-baseline health vulnerability interaction. Subgroup sample size is n=875 for non-vulnerable girls, n=551 for vulnerable girls, n=761 for non-vulnerable boys, and n=642 for vulnerable boys.