SERPINA1 and Anxiety: The objective of this study is to verify the hypothesis by examining the following: (1) The association between the number of AAT repeats and the occurrence of AUD; (2) The anxiety levels of AUD and control subjects, measured as a state and as a trait, as well as the personality traits; (3) The correlation between the number of AAT repeats and anxiety levels measured as a state and as a trait, as well as the personality traits in AUD and control subjects.