OBJECTIVE: To describe the prevalence of generalized anxiety disorder (GAD) in a community-dwelling population aged 80 years and older. Also, to compare sleep patterns, cognitive function and prevalence rate of other psychiatric conditions between healthy controls and GAD subjects. METHODS: DSM-IV criteria were used to diagnose GAD. A representative random sample of 77 community-dwelling subjects (35%), aged 80 years or more from the rural southern county of Veranopolis, Brazil, was selected. Sleep patterns were assessed using the Pittsburgh Sleep Quality […]