Prevalência de dor crônica entre adultos na Amazônia Brasileira: um estudo transversal de base populacional

Abstract

Background: Chronic pain is a major public health problem, associated with substantial functional, psychosocial, and economic consequences, particularly in low- and middle-income regions, as the northern Brazilian Amazon. The aim of this study was to estimate the prevalence of chronic pain and to characterize the sociodemographic profile of the adult population living in the state in the northern Brazilian Amazon. Methods: This population-based, cross-sectional study was conducted between February and September 2025, using both online and in-person data collection. A total of 365 individuals aged 18 years or older were included. Chronic pain was defined as pain persisting for three months or longer. Results: The prevalence of chronic pain was 55.8%, with predominance of women, young adults, single individuals, those self-identified as mixed race/ethnicity, and economically active individuals. Most individuals with chronic pain reported moderate to severe pain intensity, indicating a relevant clinical impact. Approximately one third reported the presence of associated diseases. Conclusion: The findings reveal a high prevalence of chronic pain in a predominantly young population. This study provides original population-based evidence from an underrepresented region of Brazil, highlighting a substantial burden of chronic pain among young and economically active adults in northern Brazilian state.