Trends in the prevalence and economic burden of hypertension and its socioeconomic disparities in rural southwestern China: two repeated cross-sectional studies

ObjectivesThis study aimed to analyse trends in the prevalence and economic burden of hypertension and its socioeconomic disparities in rural southwestern China.DesignTwo repeated cross-sectional studies were conducted to collect interview and health examination data among individuals aged ≥35 years in rural Yunnan Province, China.SettingThree rural areas of Yunnan, China.ParticipantsWe invited 8187 consenting participants in 2010–2011 and 7572 consenting participants in 2020–2021 to undergo interviews and health examinations.ResultsThe standardised prevalence of hypertension significantly increased from 26.1% in 2011 to 40.4% in 2021 (p