Introduction: Minor psychiatric disorders are important in primary care, because of its high prevalence and consumption of healthcare resources generated. Objective: Evaluate the effectiveness of rational emotive behavioral therapy (REBT), as an instrument of social work intervention to enhance changes in the parameters of quality of life, medical consultations and drug use in patients with dysthymia. Design: Multicenter, prospective, not randomized clinical trial, with intervention and control group simultaneously in urban primary care settings and 1 year of follow up. Participants: Out-patients seen in two Primary Care centers diagnosed with dysthymia according to DSM-IV classification of American Psychiatric Association. Intervention: Subjects receive up to 8 biweekly individual sessions of thirty minutes of REBT administered by the Social Worker. Variables: Demographic data, educational level, coexistence, comorbidity, quality of life assessment, severity of depression, number of visits to the General Practitioner (GP) and drug consumption: sedatives / antidepressants. Expected Results: The expected results of the intervention, estimated from previous data, are: * A decrease in attendance at medical visits per year * An improvement in perceived quality of life, measured as values of the Quality of Life (QOL) questionnaire (Baker \& Intagliata) * An improvement in severity of depression, measured according to the Beck Depression Inventory. * A reduction of treatment with psychotropic drugs (sedatives and antidepressants). Potential impact expected: The investigators hope that rational emotive theory is an effective intervention method for handling minor psychiatric disorders in clinical social work.
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Change From Baseline in Severity of Depression, Measured According to the Beck Depression Inventory, at 4 and 12 Months.
Timeframe: Baseline, month 4, month 12.