Impact of different approaches of primary care mental health on the prevalence of mental disorders

Aim: To compare the impact of three different approaches to primary care mental health on the prevalence of mental disorders. Background: Millions of people suffer from mental disorders. As entry point into the health service, primary healthcare plays an important role in providing mental health prevention and treatment. Methods: Random sample of households in three different areas of the city of RibeirAo Preto (state of SAo Paulo, Brazil) were selected, and 20 trained medical students conducted interviews using a mental health screening instrument, the Mini-Screening of Mental Disorders, and a socio-demographic datasheet. Primary care mental health was provided in each area through a specific approach. The influence of the area of residence and the socio-demographic variables on the prevalence of mental disorder was explored and analyzed by univariate binary logistic regression and then by a multiple logistic regression model. Findings: A total of 1545 subjects were interviewed. Comparison between the three areas showed a significantly higher number of people with mental disorders in the area covered by the primary care team that did not have physicians with specific primary care mental health training, even when this association was adjusted for the influence of age, education, and socio-economic status. Our results suggest that residing in areas with family physicians with mental health training is associated with a lower prevalence of mental disorders.