Enter the number of cases and the population at risk into the calculator to determine the period prevalence rate. This calculator helps in understanding the proportion of a population that is affected by a certain condition during a specific time period.
Period Prevalence Formula
The following formula is used to calculate the period prevalence rate:
PP = (C / P) * 100
Variables:
- PP is the period prevalence rate (%)
- C is the number of cases during the period
- P is the population at risk during the same period
To calculate the period prevalence rate, divide the number of cases by the population at risk and then multiply by 100 to convert it to a percentage.
What is Period Prevalence?
Period prevalence refers to the proportion of a population that is affected by a particular disease or condition at any point during a specified time period. It is a measure of how widespread the condition is within the population at risk. This metric is useful for public health officials to understand the burden of a health problem within a community and to allocate resources accordingly.
How to Calculate Period Prevalence?
The following steps outline how to calculate the Period Prevalence rate.
- First, determine the number of cases (C) during the period.
- Next, determine the population at risk (P) during the same period.
- Next, gather the formula from above = PP = (C / P) * 100.
- Finally, calculate the Period Prevalence rate (PP) in percentage.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem:
Use the following variables as an example problem to test your knowledge.
Number of cases (C) = 150 cases
Population at risk (P) = 2000 people
