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. Author manuscript; available in PMC: 2011 Jul 1.
Published in final edited form as: Drug Alcohol Depend. 2010 Mar 24;110(1-2):92–100. doi: 10.1016/j.drugalcdep.2010.02.013

Figure 2.

Figure 2

Significant predictors of outcomes common to the HMO and VA samples. HMO regression coefficients in parentheses. Asterisks indicate a significantly larger coefficient in one sample. a < .05, b < .01, c < .001