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12 Cards in this Set
- Front
- Back
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Experimental Event Rate (EER) is calculated how?
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a/(a+b)
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Control Event Rate (CER) is calculated how?
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c/(c+d)
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Relative Risk how is it calculated?
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EER/CER
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Odds Ratio how is it calculated?
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(a/c)/(b/d)
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Relative Risk Reduction (RRR) is calculated how?
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|EER-CER|/CER
|absolute value| |
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Absolute Risk Reduction (ARR) is calculated how?
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|EER-CER|
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Number Needed to Treat (NNT) is calculated how?
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1/ARR
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Relative Risk Increase (RRI) is calculated how?
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|EER-CER|/CER
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Absolute Risk Increase (ARI) is calculated how?
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|EER-CER|
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Number Needed to Harm (NNH) is calculated how?
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1/ARI
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Likelihood Ratio Positive (LR+): The odds that a positive test result would be found in a patient with, versus without, a disease is calculated how?
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Likelihood Ratio Positive (LR+) = Sensitivity/(1-Specificity)
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Likelihood Ratio Negative (LR-): The odds that a negative test result would be found in a patient without, versus with, a disease is calculated how?
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Likelihood Ratio Negative (LR-) = (1-Sensitivity)/Specificity
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