UK research on Covid fatality rate

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Risk of death from COVID-19 doubles for approximately every eight years of aging.
Age-specific IFRs increased from 0.1% and below for individuals under 40 years to greater than 5% among individuals over 80 years

Using these age-specific estimates, the team estimates the overall IFR in a low-income country,
with a population structure skewed towards younger individuals,
can be expected to be approximately 0.23% (95% prediction interval 0.14-0.42).

In contrast, in high income countries,
with a greater concentration of elderly individuals,
the report estimates that the overall IFR can be expected to be approximately 1.15% (95% prediction interval 0.78-1.79).

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