The report describes in sociodemographic and epidemiological terms the clientele served. The variables included in the report are broken down by sex and are detailed below: age, ethnic group, veteran status, last grade completed, school dropout, employment status, family structure, marital status, health insurance, women and men with dependent children, municipality of residence, type of residence, geographical area of residence, source of referral to treatment, legal status of the referral, level of mental health care and substances, dual diagnosis, primary diagnosis of axis I of the DSMIV, GAF/C-GAS scale, history of child abuse, history of suicidal ideation and attempts, victim of domestic violence, primary physical health diagnosis, participation in support group meetings, problems with the justice system, arrests in the past, drugs for primary, secondary and tertiary use, route, frequency and measure of drug use (primary, secondary and tertiary). The report includes descriptive statistics for some of the variables such as: age, GAF/C-GAS scale and age of onset of primary, secondary and tertiary drug use.