case fatality rate

noun
variants: or case-fatality rate or less commonly case fatality ratio or case-fatality ratio
plural case fatality rates or case-fatality rates also case fatality ratios or case-fatality ratios

Definition of case fatality rate

: the ratio between deaths and confirmed or reported cases of a specific disease or medical condition within a given time period Among the immunocompetent patients who had invasive pneumococcal infections caused by serotypes represented in the vaccine, the case fatality rate was 33 percent (23 of 70) among those who had been vaccinated and 25 percent (186 of 738) among those who had not.— Eugene D. Shapiro et al. If untreated, the case-fatality rate of inhaled anthrax exceeds 80%.The Journal of the American Medical Association abbreviation CFR

First Known Use of case fatality rate

1912, in the meaning defined above

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The first known use of case fatality rate was in 1912

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Cite this Entry

“Case fatality rate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/case%20fatality%20rate. Accessed 7 Oct. 2022.

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More Definitions for case fatality rate

case fatality rate

noun
variants: or case-fatality rate also case fatality ratio or case-fatality ratio

Medical Definition of case fatality rate

: the ratio between deaths and confirmed or reported cases of a specific disease or medical condition within a given time period Among the immunocompetent patients who had invasive pneumococcal infections caused by serotypes represented in the vaccine, the case fatality rate was 33 percent (23 of 70) among those who had been vaccinated and 25 percent (186 of 738) among those who had not.— Eugene D. Shapiro et al., The New England Journal of Medicine An estimated 10,000 to 15,000 cases of invasive group A streptococcal infections occur each year in the United States; of these, necrotizing fasciitis occurs in five to 10 percent, and the case-fatality rate is 28 percent.— Harvey B. Simon, Scientific American Medicine abbreviation CFR

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