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Chunk #15 — Results — Relationship between Childhood Trauma Exposure and Alcohol Dependence Severity in Treatment-Seeking Alcoholics

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Childhood trauma exposure and alcohol dependence severity in adulthood: mediation by emotional abuse severity and neuroticism.
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Table 3 presents the results of the multiple mediation analyses for CTQ total score and for each trauma type. All effect estimates are unstandardized regression coefficients, as recommended by Preacher and Hayes (Preacher and Hayes, 2008), and as such represent the average change in ADS score as a result of a one unit change in the independent variable. Since all trauma types are measured on the exact same scale (ranging from 5 to 25), comparison of the magnitude of the effect estimates is straightforward. The model using CTQ total score as the independent variable (R2 = 0.31, p < 0.0001) showed a significant total effect on ADS score (b = 0.09, p = 0.005) as well as an indirect effect mediated through neuroticism (bootstrapped estimate = 0.03, 95% CI = 0.01, 0.06). When the individual trauma types were evaluated, emotional abuse was found to exhibit significant total (b = 0.48, p < 0.0001) and direct effects (b = 0.34, p = 0.01) on ADS score, as well as an indirect effect through neuroticism (bootstrapped estimate = 0.08, 95% CI =