Three hundred eighty-one participants out of a larger population of 620 had completed SRE questionnaires and had genotyping data that were available for these analyses. Three hundred seventy-nine (61%) participants met criteria for Alcohol dependence. Demographics of this sample are presented in Table 1. There were no significant differences in the demographics between the participants with SRE data and genotyping available (e.g. the linkage sample, n=381) and the entire sample of participants in the study with valid SSAGA data (n=620) but no genotyping and/or SRE data.
