Covid Mortality Risk Calculator
Estimate COVID-19 case fatality risk from age, sex, and common comorbidities using published epidemiological data.
What Is the COVID Mortality Risk Calculator?
This educational tool estimates relative COVID-19 case fatality risk from age, sex, and common comorbidities using early China CDC cohort data from February 2020. It helps illustrate why older adults and people with chronic conditions faced higher mortality early in the pandemic. For gathering exposure estimates, use the COVID Event Risk Calculator.
Data Sources and Limits
Reported case fatality varied by age from about 0.2% in younger adults to 14.8% in people 80 and older. Males had higher reported fatality (2.8%) than females (1.7%). Comorbidity subgroups such as cardiovascular disease showed elevated rates around 10.5%. Vaccination, treatments, and variants changed real-world risk after this dataset was published.
How Results Are Combined
The calculator starts with an age-specific baseline, adjusts for sex, then incorporates the highest selected comorbidity rate when conditions are present. Results are relative estimates for learning, not individualized medical predictions.
Frequently Asked Questions
Is this calculator still accurate today?
It reflects early pandemic epidemiology. Modern risk depends heavily on vaccination, prior infection, variant, and access to care.
Why does age dominate the estimate?
Age was the strongest predictor in early datasets. Immune function and reserve decline with age, raising complication and mortality rates.
Which comorbidities are included?
Cardiovascular disease, diabetes, chronic respiratory disease, hypertension, and malignant disease. Each uses published subgroup fatality rates from the source paper.
Does female sex lower estimated risk?
Early data showed lower reported fatality among females. The tool applies that sex-specific adjustment to the age baseline.
Should I use this for treatment decisions?
No. Discuss personal risk with a qualified clinician who knows your full history, medications, and local epidemiology.
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