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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 4. MTO Intervention Effects on Mean Difference in Behavior Problems 4–7 Years After Baseline, Modified by Gender & Health Vulnerability, by Site.

Figure 4

Figure 4

Panel 4a presents the Linear Regression Intent to Treat (ITT) estimates by Site. Panel 4b presents adherence-adjusted estimates of intervention effects from 2nd stage instrumental variable (IV) analysis by Site. NVG=non-vulnerable girls, VG=vulnerable girls, NVB-non-vulnerable boys, and VB=vulnerable boys. The primary hypothesis test tested whether the intervention-health vulnerability interaction coefficient was significantly different from zero. Models adjusted for covariates listed in Table 2, plus intervention-baseline health vulnerability interaction. Subgroup sample size is: non-vulnerable girls n=145 for Baltimore, n=165 for Boston, n=193 for Chicago, n=193 for Los Angeles, and n=179 for New York; vulnerable girls n=79 for Baltimore, n=133 for Boston, n=113 for Chicago, n=56 for Los Angeles, and n=170 for New York; non-vulnerable boys n=136 for Baltimore, n=136 for Boston, n=161 for Chicago, n=191 for Los Angeles, and n=137 for New York; vulnerable boys n=88 for Baltimore, n=141 for Boston, n=134 for Chicago, n=90 for Los Angeles, and n=189 for New York.