Relative risk reduction (RRR) differs from absolute risk reduction (ARR) because:

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B) RRR expresses the proportional reduction in risk while ARR gives the actual difference in event rates. RRR = ARR/CER (control event rate). Can overstate clinical significance — a 50% RRR sounds impressive but if baseline risk is 2%, ARR is only 1% (NNT=100). Always consider both.

Relative risk reduction (RRR) differs from absolute risk reduction (ARR) because:

✓ Correct Answer: Option B

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