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BMC Public Health . COVID-19 mortality risk for older men and women

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  • BMC Public Health . COVID-19 mortality risk for older men and women


    BMC Public Health


    . 2020 Nov 19;20(1):1742.
    doi: 10.1186/s12889-020-09826-8.
    COVID-19 mortality risk for older men and women


    N David Yanez 1 , Noel S Weiss 2 , Jacques-André Romand 3 , Miriam M Treggiari 4



    Affiliations

    Abstract

    Background: Case-fatality from COVID-19 has been reported to be relatively high in patients age 65 years or older. We sought to determine the age-specific rates of COVID-19 mortality at the population level.
    Methods: We obtained information regarding the total number of COVID-19 reported deaths for six consecutive weeks beginning at the 50th recorded death, among 16 countries that reported a relatively high number of COVID-19 cases as of April 12, 2020. We performed an ecological study to model COVID-19 mortality rates per week by age group (54 years or younger, 55-64 years, and 65 years or older) and sex using a Poisson mixed effects regression model.
    Results: Over the six-week period of data, there were 178,568 COVID-19 deaths from a total population of approximately 2.4 billion people. Age and sex were associated with COVID-19 mortality. Compared with individuals ages 54 years or younger, the incident rate ratio (IRR) was 8.1, indicating that the mortality rate of COVID-19 was 8.1 times higher (95%CI = 7.7, 8.5) among those 55 to 64 years, and more than 62 times higher (IRR = 62.1; 95%CI = 59.7, 64.7) among those ages 65 or older. Mortality rates from COVID-19 were 77% higher in men than in women (IRR = 1.77, 95%CI = 1.74, 1.79).
    Conclusions: In the 16 countries examined, persons age 65 years or older had strikingly higher COVID-19 mortality rates compared to younger individuals, and men had a higher risk of COVID-19 death than women.

    Keywords: Age; Pandemic; Population health; Severe acute respiratory syndrome-CoronaVirus-2, epidemiology.

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