Multivariable adjusted hazard ratios for incident end-stage renal disease associated with treatment-resistant hypertension among Reasons for Geographic and Racial Differences in Stroke (REGARDS) Study participants, in subgroups. Hazard ratios adjusted for age, race, sex, region of residence, education, income, physical activity, current smoking, alcohol use, statin use, waist circumference, diabetes, total cholesterol, high-density lipoprotein cholesterol, c-reactive protein, history of myocardial infarction, and history of stroke.