Descriptive analyses of sociodemographic and clinical data will be carried out. Analysis of variance (ANOVA) and t-students tests will be used to compare continuous data, and chi-square analysis for categorical variables. Bonferroni correction will be used for multiple comparisons. A probability level of 5% or less will be considered as statistically significant. Poisson regression and sensitivity analyses with negative binomial regression will be done. Linear regression will be done to analyze the relationship between grams per week of alcohol and health costs. Data were analysed with Statistical Analysis Software.