The formula to calculate the Hazard Ratio (HR) is:
\[ HR = \frac{P(t)}{P(c)} \]
Where:
A hazard ratio is a measure used in survival analysis to compare the likelihood of events occurring at any given time point between two groups. It is commonly used in clinical trials and epidemiological studies to evaluate the effectiveness of a treatment compared to a control. A hazard ratio of 1 indicates no difference between the two groups, while a hazard ratio greater than 1 indicates a higher probability of the event occurring in the treatment group, and a hazard ratio less than 1 indicates a lower probability.
Let's assume the following values:
Using the formula to calculate the Hazard Ratio:
\[ HR = \frac{0.3}{0.2} = 1.5 \]
The Hazard Ratio is 1.5.
