Calculatorism

Incidence Rate Calculator

Compute incidence rate = cases / person-time.

Input Data

Input New cases.
Input Person-time.
person-yr

Results

0.01/person-yr
rate = cases / person-time (per person-year).

At a glance:Incidence Rate Calculator: enter parameters to compute results; complements related calculators.

Formula

incidence = new cases / person-time.

How to Use

  1. Enter new cases and total person-time.
  2. It returns incidence per person-year.

Case Studies

10 / 1000 person-yr → 0.01

incidence = 10/1000 = 0.01 per person-year.

FAQ

Incidence vs prevalence?

Incidence is new cases over time; prevalence is existing cases at a point.

Related Tools

References

Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.

Found a problem with the results?

If this calculator's result is wrong, or you have any question about the calculation logic, please let us know. You are viewing:Incidence Rate Calculator（/statistics/incidence-rate）。