SUMMARY
BACKGROUND AND OBJECTIVES:Pain is a prevalent clinical condition causing tremendous humanistic and economic burden worldwide. With limited research into the impact of pain on health related outcomes in Brazil, the current study examined prevalence of pain conditions, rate of diagnosis and treatment, and potential impact on health outcomes among Brazilian adults. METHOD: Data were collected from the stratified random sample of adults (n = 12,000) in thecross-sectional 2011 National Health and Wellness Survey (NHWS) in Brazil. Respondents reported on sociodemographic information, health-related quality of life (SF-12v2), work productivity and activity impairment (WPAI), comorbid conditions, and healthcare resource use. Comparisons between those reporting pain and no pain (i.e.,neuropathic pain, fibromyalgia, surgery/medical procedurerelated pain, or back pain, versus controls without the respective condition; or arthritis, with vs. without experiencing pain) were conducted using Chi-square and t-tests for categorical and continuous variables, respectively. RESULTS: Back pain was the most commonly reported