EBM Flashcards

1
Q

Based on the following picture, how would you calculate sensitivity?

A

a / (a+c)

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2
Q

Based on the following picture, how would you calculate specificity?

A

d / (b+d)

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3
Q

Based on the following picture, how would you calculate the PPV?

A

a / (a+b)

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4
Q

Based on the following picture, how would you calculate the NPV?

A

d / (c+d)

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5
Q

How is a + LR calculated?

A

sensitivity / (1- specificity)

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6
Q

How is a - LR calculated?

A

(1 - sensitivity) / specificity

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