Incidence Rate Calculator
Calculates an incidence rate using accumulated person-time. The worked condition keeps the inputs and convention visible for checking.
Set the labeled inputs
Incidence Rate
The reference quantity in the worked condition for incidence rate
Calculates an incidence rate using accumulated person-time. The named quantity is incidence rate calculator. This is section 1 of the incidence rate discussion.
Save the inputs, formula convention, units, exclusions, and unrounded output with this result. This statement is conditional on the incidence rate setup and section 1.
For incidence rate, preserve the source definition, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
A related calculation is risk difference.
A compact route to the answer before reporting for incidence rate
Person-time must use a declared unit and account for unequal follow-up. The named quantity is incidence rate calculator. This is section 2 of the incidence rate discussion.
50 cases over 2,400 person-years gives an incidence rate .0208 per person-year. This statement is conditional on the incidence rate setup and section 2.
For incidence rate, preserve the denominator choice, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
The boundary of the claim under the stated model for incidence rate
Person-time must use a declared unit and account for unequal follow-up. The named quantity is incidence rate calculator. This is section 3 of the incidence rate discussion.
Save the inputs, formula convention, units, exclusions, and unrounded output with this result. This statement is conditional on the incidence rate setup and section 3.
For incidence rate, preserve the comparison group, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
How to carry the result forward when the sample changes for incidence rate
Calculates an incidence rate using accumulated person-time. The named quantity is incidence rate calculator. This is section 4 of the incidence rate discussion.
50 cases over 2,400 person-years gives an incidence rate .0208 per person-year. This statement is conditional on the incidence rate setup and section 4.
For incidence rate, preserve the time boundary, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
The quantity this page defines during an independent review for incidence rate
Person-time must use a declared unit and account for unequal follow-up. The named quantity is incidence rate calculator. This is section 5 of the incidence rate discussion.
Save the inputs, formula convention, units, exclusions, and unrounded output with this result. This statement is conditional on the incidence rate setup and section 5.
For incidence rate, preserve the design boundary, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
A direct numerical check at the chosen parameters for incidence rate
Person-time must use a declared unit and account for unequal follow-up. The named quantity is incidence rate calculator. This is section 6 of the incidence rate discussion.
50 cases over 2,400 person-years gives an incidence rate .0208 per person-year. This statement is conditional on the incidence rate setup and section 6.
For incidence rate, preserve the rounding rule, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
Interpreting the result before comparing methods for incidence rate
Calculates an incidence rate using accumulated person-time. The named quantity is incidence rate calculator. This is section 7 of the incidence rate discussion.
Save the inputs, formula convention, units, exclusions, and unrounded output with this result. This statement is conditional on the incidence rate setup and section 7.
For incidence rate, preserve the reference population, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
Keeping a reproducible record when the result is reused for incidence rate
Person-time must use a declared unit and account for unequal follow-up. The named quantity is incidence rate calculator. This is section 8 of the incidence rate discussion.
50 cases over 2,400 person-years gives an incidence rate .0208 per person-year. This statement is conditional on the incidence rate setup and section 8.
For incidence rate, preserve the interpretation limit, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
Questions about this calculation
For this result, how many digits should be reported for incidence rate?
Keep the inputs, units, method, exclusions, and unrounded output together. The reported quantity here is incidence rate calculator.
During an independent check, does this result establish a causal relationship for incidence rate?
Keep the inputs, units, method, exclusions, and unrounded output together. The reported quantity here is incidence rate calculator.
Under the stated model, what belongs in the saved record for incidence rate?
Keep the inputs, units, method, exclusions, and unrounded output together. The reported quantity here is incidence rate calculator.
Before drawing a conclusion, what should be checked before reusing this result for incidence rate?
Keep the inputs, units, method, exclusions, and unrounded output together. The reported quantity here is incidence rate calculator.