Frequently Asked Questions
How is prevalence different from incidence?
Prevalence counts all existing cases at a point in time, while incidence counts only new cases appearing over a period. A chronic condition can have low incidence yet high prevalence.
Why report cases per one hundred thousand?
For uncommon conditions a percentage is a tiny fraction that is hard to read, so public health reporting often uses a rate per one hundred thousand people instead.
Is this calculator a clinical tool?
No. It is an educational tool for understanding prevalence and is not a substitute for a formal epidemiological study or clinical advice.
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Estimates for informational purposes only.
Important Disclaimer: Estimates for informational purposes only.
This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.