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Concept
Absolute Risk Reduction
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Summary
Absolute Risk Reduction
(ARR) quantifies the
Decrease in risk
of a
Certain Event
occurring due to an intervention, calculated as the difference in
Event rates
between the
Control Group
and the
Treatment Group
. It provides a straightforward measure of the effectiveness of an intervention, crucial for
Clinical Decision-making
and
Patient Communication
.
Concepts
Risk Difference
Control Event Rate
Treatment Event Rate
Number Needed To Treat
Relative Risk Reduction
Baseline Risk
Clinical Significance
Efficacy
Vaccine Efficacy Rate
Experimental Event Rate
Relevant Degrees
Public and Professional Organization of Health 70%
Probability and Statistics 30%
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