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Abstract
Objective: Alcohol abusers are vulnerable to emotional disabilities. Studies have shown that alexithymia is significantly associated with alcohol dependence and many other phenotypic descriptors. Given the high phenotypic heterogeneity that characterizes the alcohol dependence syndrome, the study aims to assess alexithymia features according to a multivariate classification scheme of alcoholism – the Lesch Alcoholism Typology (LAT). Methods: A total of 274 alcohol dependence outpatients (DSM diagnosis) were recruited from the Alcoholism Unit of the Psychiatric Service of Santa Maria University Hospital. After a detailed clinical observation, subjects were evaluated with the alcoholism classification system (LAT) and self-rated alexithymia with the Toronto Alexithymic Scale – 20 items (TAS-20). Results: Data showed that almost half of the alcohol-dependent individuals were defined as alexithymic cases (48.5%). “Organic” alcohol-dependent patients (type IV of Lesch classification) presented higher scores in TAS-20 when compared to other subtypes, even after controlling for potential confounding factors. Furthermore, the TAS-20 scores were related to educational level and family history of alcoholism. Conclusions: Results indicate that the alexithymia construct is an important psychological dimension in the characterization of alcohol dependence, especially the alcohol-dependent phenotypes that are more likely to present co-existing organic complications.
Declaration of interest
The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the article. All authors materially participated in the research and manuscript preparation. Funding sources had no role in the study.