Prevalência e perfil dos fumantes diários usuários de três unidades básicas de saúde de Pelotas, sul do Brasil Prevalence and profile of daily smokers seen at three primary health care units in Pelotas, southern Brazil Abstract Objectives: To estimate the prevalence of daily smoking among users of three primary health care units affiliated with a university hospital in the municipality of Pelotas, southern Brazil, and to identify factors associated with daily tobacco consumption.