• Mayo Clinic proceedings · Dec 2020

    Mortality Due to Mitral Regurgitation Among Adults in the United States: 1999-2018.

    • Vibhu Parcha, Nirav Patel, Rajat Kalra, Sarabjeet S Suri, Garima Arora, and Pankaj Arora.
    • Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, AL.
    • Mayo Clin. Proc. 2020 Dec 1; 95 (12): 2633-2643.

    ObjectiveTo evaluate the nationwide trends in mortality due to mitral regurgitation (MR) among American adults from 1999 to 2018.Patients And MethodsTrends in mortality due to MR were assessed using retrospective cross-sectional analyses of nationwide mortality data from death certificates of all American residents between January 1, 1999, and December 31, 2018, using the Centers for Disease Control and Prevention Wide-Ranging Online Data for Epidemiologic Research database. Piecewise linear regression was used to evaluate the trends in the overall population and in subgroups.ResultsAmong 45,982 deaths due to MR during the study period, higher mortality rates were seen in older White females from the western United States. In 1999, the crude and age-adjusted mortality rates were 27.4 (95% CI, 26.3 to 28.4) and 27.5 (95% CI, 26.4 to 28.5) per 1,000,000 persons, respectively. By 2018, these rates declined to 18.0 (95% CI, 17.3 to 18.7) and 17.7 (95% CI, 17.0 to 18.4) per 1,000,000 persons, respectively (P<.001 for trend for both). Crude mortality rates declined from 1999 to 2012 (annual percentage change [APC], -4.1 (95% CI, -4.6 to -3.6) but then increased after 2012 (APC, 2.6 [95% CI, 0.8 to 4.4; P<.001 for change in trend]). The age-adjusted mortality rates declined from 1999 to 2012 (APC, -3.9 [95% CI, -4.4 to -3.4]) but subsequently increased after 2012 (APC, 1.4 [95% CI, -0.4 to 3.2; P<.001 for change in trend]). The observed decrease was consistent across age, sex, race, geographic region, and urbanization subgroups (P<.05 for all).ConclusionMortality due to MR in American adults declined at an annual rate of approximately 4% until 2012 and has since then increased by about 1.5% annually. These mortality trends warrant further investigation.Copyright © 2020 Mayo Foundation for Medical Education and Research. All rights reserved.

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