The formula to calculate the Prevalence Ratio (PR) is:
\[ PR = \frac{PT}{PC} \]
Where:
The Prevalence Ratio (PR) is a measure used in epidemiology to compare the prevalence of a disease or condition between two groups, typically a test group and a control group. The prevalence ratio helps determine whether the prevalence of a condition is higher or lower in the test group compared to the control group. A prevalence ratio greater than 1 indicates a higher prevalence in the test group, while a ratio less than 1 indicates a lower prevalence in the test group.
Let's consider an example:
Using the formula to calculate the Prevalence Ratio (PR):
\[ PR = \frac{0.15}{0.10} = 1.5 \]
This means that the prevalence of the condition in the test group is 1.5 times higher than in the control group.
