• Ann Am Thorac Soc · Nov 2016

    Deaths Related to Nontuberculous Mycobacterial Infections in the United States, 1999-2014.

    • Christopher Vinnard, Sarah Longworth, Alyssa Mezochow, Amee Patrawalla, Barry N Kreiswirth, and Keith Hamilton.
    • 1 Public Health Research Institute and.
    • Ann Am Thorac Soc. 2016 Nov 1; 13 (11): 1951-1955.

    RationaleUnlike tuberculosis, nontuberculous mycobacterial disease is not reportable to public health authorities in the United States, and the total burden of disease is uncertain.ObjectivesTo estimate the mortality of nontuberculous mycobacterial disease in the United States over a 15-year period and to identify temporal trends.MethodsThe U.S. Multiple Cause of Death Files from 1999 through 2014 were searched for a listing of nontuberculous mycobacterial disease by International Classification of Diseases, Tenth Revision code as either the underlying or a contributing cause of death. Characteristics of individuals with nontuberculous mycobacteria-related deaths in the United States were summarized according to demographic characteristics. Age-adjusted mortality rates and rate ratios were calculated using bridged-race population estimates of U.S. census population data. Time trends were evaluated with negative binomial regression.Measurements And Main ResultsThere was a significant increase in nontuberculous mycobacteria-related deaths among individuals without a diagnosis of HIV infection (P = 0.004). Mortality rates increased with advancing age. Age-adjusted mortality rate ratios were lower for men (risk ratio [RR], 0.84; 95% confidence interval [CI], 0.80-0.87) compared with women, and were lower for Hispanic individuals (RR, 0.53; 95% CI, 0.49-0.56) and black, non-Hispanic persons (RR, 0.83; 95% CI, 0.77-0.88) compared with white, non-Hispanic individuals.ConclusionsThe mortality rate of nontuberculous mycobacterial disease among HIV-uninfected individuals has increased in the United States between 1999 and 2014. These deaths occurred disproportionately in older white women. Considering the concurrent decline in tuberculosis-related deaths, these findings demonstrate a shift in the epidemiology of fatal mycobacterial infections in the United States.

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