Use trends of chlorthalidone and hydrochlorothiazide among United States adults with hypertension: National Health and Nutrition Examination Survey 2009-2018.

Objectives: To estimate the national prevalence of chlorthalidone and hydrochlorothiazide use among adults diagnosed with hypertension by sociodemographic subgroup, healthcare access status, and clinical factors.

Methods: Data was extracted from the National Health and Nutrition Examination Survey for 2009-2010 through 2017-2018 survey waves. Patients at least 20 years old, diagnosed with hypertension, and on hydrochlorothiazide or chlorthalidone were included.