This study assessed the prevalence of depression and associated factors among Brazilian elderly in Arroio Trinta, Southern Brazil. During home visits, a questionnaire was administered to all people aged 60 or older living in the municipality in 2013. The Geriatric Depression Scale Short Form (GDS-15) was used. The χ 2 test was performed to compare proportions and Poisson regression with robust adjustment of variance in the multivariate analysis. The effect measure applied was the prevalence ratio. The prevalence of depression among 552 (out of 568) elderly studied was 20.4% (95%CI 17.3 - 23.8). An adjusted analysis conducted according to a predefined hierarchical model showed higher prevalence ratios of depression among females, single people, those with lower household income, smokers, and those who had been hospitalized in the 12 months preceding the interview. Engaging in leisure-time activities such as dances and religious activities or regular physical activity were protective factors for depression. Results from this study demonstrate the need of proper treatment and management of this condition at the community level.

This study found prevalence of high anxiety. It may be associated with certain characteristics of the patients (gender, age, chronic diseases); the medical appointment in primary care and time (estimated by the patient) that the student remained with this patient. The need for a focused approach to mental health care within the hospital has been discussed for a long time. The particularity of this study refers to the environment of a university hospital and to what extent the environment and the patient's relationship with the student are associated with higher prevalence of anxiety.