NBME Step 2 CK Form 8 Positive predictive value is 88% (NBME Answers)

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Retired NBME Answer Explanations

Retired NBME Step 2 CK Form 8 Answers

step2ck_form8/Block 2/Question#16 (reveal difficulty score)
A study is conducted to determine if a ...
Positive predictive value is 88% 🔍 / 📺 / 🌳 / 📖
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submitted by ∗step_prep(148)

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Positive predictive value: Of the positive test results, how many actually had the disease (dependent on disease prevalence)
Sensitivity: Of the patients with disease, how many had a positive test result (independent of disease prevalence)

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lindasmith462 was I the only one that was thrown off for way too long by the "all patients with an increased" part - when the question was specifically about >15% I was like ok well how many whos increased over 15% had diabetic retinopathy. what is this telling me? +2

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