@Article{info:doi/10.2196/51891, author="Lee, Hyeri and Kim, Minji and Woo, Selin and Park, Jaeyu and Kim, Hyeon Jin and Kwon, Rosie and Koyanagi, Ai and Smith, Lee and Kim, Min Seo and L{\'o}pez S{\'a}nchez, Guillermo F and Dragioti, Elena and Lee, Jinseok and Lee, Hayeon and Rahmati, Masoud and Rhee, Sang Youl and Lee, Jun Hyuk and Woo, Ho Geol and Yon, Dong Keon", title="National and Regional Trends in the Prevalence of Hypertension in South Korea Amid the Pandemic, 2009-2022: Nationwide Study of Over 3 Million Individuals", journal="JMIR Public Health Surveill", year="2024", month="Jul", day="30", volume="10", pages="e51891", keywords="COVID-19; pandemic; Korea; hypertension; HPN; high blood pressure; prevalence; national trends; regional trends; nationwide study; socioeconomic; trends; participant; population based; cross-sectional study; treatment", abstract="Background: Understanding the association between hypertension prevalence and socioeconomic and behavioral variables during a pandemic is essential, and this analysis should extend beyond short-term trends. Objective: This study aims to examine long-term trends in the prevalence of participants diagnosed with and receiving treatment for hypertension, using data collected by a nationally representative survey from 2009 to 2022, which includes the COVID-19 pandemic era. Methods: A nationwide, population-based, cross-sectional study used data collected from the South Korea Community Health Survey between 2009 and 2022. The study sample comprised 3,208,710 Korean adults over a period of 14 years. We aimed to assess trends in the prevalence of participants diagnosed with and receiving treatment for hypertension in the national population from 2009 to 2022, with a specific focus on the COVID-19 pandemic, using weighted linear regression models. Results: Among the included 3,072,546 Korean adults, 794,239 (25.85{\%}) were aged 19-39 years, 1,179,388 (38.38{\%}) were aged 40-59 years; 948,097 (30.86{\%}) were aged 60-79 years, and 150,822 (4.91{\%}) were aged 80 years or older. A total of 1,426,379 (46.42{\%}) were men; 761,896 (24.80{\%}) and 712,264 (23.18{\%}) were diagnosed with and received treatment for hypertension, respectively. Although the overall prevalence over the 14-year period increased, the upward trends of patients diagnosed with and receiving treatment for hypertension decreased during the COVID-19 pandemic era compared with the prepandemic era ($\beta$ difference for trend during vs before the pandemic --.101, 95{\%} CI --0.107 to --0.094 vs --.133, 95{\%} CI --0.140 to --0.127). Notably, the trends in prevalence during the pandemic were less pronounced in subgroups of older adults (≥60 years old) and individuals with higher alcohol consumption (≥5 days/month). Conclusions: This nationwide representative study found that the national prevalence of participants diagnosed with and receiving treatment for hypertension increased during the prepandemic era. However, there was a marked decrease in these trends during the prepandemic era, compared with the pandemic era, particularly among specific subgroups at increased risk of negative outcomes. Future studies are needed to evaluate the factors associated with changes in the prevalence of hypertension during the COVID-19 pandemic. ", issn="2369-2960", doi="10.2196/51891", url="https://publichealth.jmir.org/2024/1/e51891", url="https://doi.org/10.2196/51891", url="http://www.ncbi.nlm.nih.gov/pubmed/39078683" }