2. A study calculates a Relative Risk (RR) of 0.5 for lung cancer in individuals exposed to a new air filter compared to an unexposed group. What is the technical interpretation of this finding?
A.
The air filter doubles the risk of lung cancer.
B.
The air filter halves the risk of lung cancer.
✓
C.
The air filter has no effect on lung cancer risk.
D.
The air filter increases the risk of lung cancer by 50%.
📖 Additional Information
The air filter doubles the risk of lung cancer.
The air filter halves the risk of lung cancer.
The air filter has no effect on lung cancer risk.
The air filter increases the risk of lung cancer by 50%.
