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Chunk #26 — RESULTS — Virginia Adult Twin Study of Psychiatric and Substance Use Disorders

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Measures of current alcohol consumption and problems: two independent twin studies suggest a complex genetic architecture.
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fitting submodels to test the significance of the individual genetic factors/pathways resulted in the best-fitting model (Model VII, shown in Fig. 4). Parallel to the results from the Finn- Twin16 data, this model contained multiple latent genetic factors across the measures of AC and alcohol problems. Genetic correlations for this sample are shown in Table 8 and range from 0.76 (drinking frequency and quantity) to 0.96 (drinking quantity and max drinks).