Neuropsychiatric Symptoms in Alzheimer Disease and Cognitively Impaired, Nondemented Elderly From a Community-Based Sample in Brazil: Prevalence and Relationship With Dementia Severity

Neuropsychiatric symptoms seem to be as common in patients living in a developing country as they are in demented patients from the developed world. Indeed, the fact that some of our results are similar to other population-based studies may suggest that cultural factors play a minor role in the emergence of these symptoms, at least in a Latin American country like Brazil.