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Methods| Using the Multiple Cause of Death Data maintained by the US National Center for Health Statistics from 2008 through 2017, we identified patients aged 45 years or older who died of aortic stenosis (International Statistical Classification of Diseases and Related Health Problems, Tenth Revision codes I06. 0, I06. 2, I35. 0, I35. 20) listed as the underlying cause of death. Age-adjusted rates (standardized to 2000 US census) are reported per 1 million persons. Subgroup analyses were performed by age groups (< 80 vs≥ 80 years), sex (male vs female), race/ethnicity (white, black, or Hispanic, as designated on death certificates), and urbanization (metropolitan vs nonmetropolitan, according to the 2013 Urban-Rural Scheme for Counties) to assess for mortality disparities. Trends in mortality due to aortic stenosis were tested using Joinpoint Regression Program 4.7. 0.0, 3 with a 2-sided P<. 05 considered …