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epidemiology biostatistics calculations sensitivity equations mnemonic npv ppv formulas graph cardiology classification cornell criteria ebm hypertrophy lifecycle likelihoodratios lvh lyon
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
will correctly diagnose ... #PositivePredictiveValue ... #NegativePredictiveValue ... #Calculation #Table ... NPV #Formulas #Statistics
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 Positive Predictive Value Calculation - Probability that someone with a positive test actually has the disease Positive
Predictive Value Calculation ... Positives #PositivePredictiveValue ... Biostatistics #statistics ... Epidemiology #Equations #calculations ... #diagnosis #mnemonic
Negative Predictive Value Calculation - Probability that someone with a negative test truly does not have
Predictive Value Calculation ... Negatives #NegativePredictiveValue ... Biostatistics #statistics ... Epidemiology #Equations #calculations ... #diagnosis #mnemonic
Specificity Calculation - Probability that a test correctly identifies those without the disease (true negative rate) Specificity
Specificity Calculation ... TN / (FP + TN) Specificity ... Biostatistics #statistics ... Epidemiology #Equations #calculations ... #diagnosis #mnemonic
Important Biostatistics and Epidemiology Equations Sensitivity = TP / (TP + FN) = true positives / disease
disease present Specificity ... Sensitivity) / Specificity ... Biostatistics #statistics ... Epidemiology #Equations #calculations ... #diagnosis #mnemonic
Sensitivity Calculation - Probability that a test correctly identifies those with the disease (true positive rate) Sensitivity
Sensitivity Calculation ... Biostatistics #statistics ... Epidemiology #Equations #calculations ... #diagnosis #mnemonic
It's eye-opening to realize how many tests with reasonable-appearing sensitivity or specificity will end up being
sensitivity or specificity ... despite having a specificity ... #Diagnosis #Statistics ... #Sensitivity #Specificity
This requires defining some general cutoff values for likelihood ratios. These are admittedly arbitrary, but
between sensitivity/specificity ... likelihood ratios: #Diagnosis ... #Statistics #Sensitivity ... #Specificity #LikelihoodRatios
Diagnostic Accuracy of Electrocardiographic Criteria for Left Ventricular Hypertrophy Circulation 2009 #EBM #Diagnosis #Cardiology #LVH #Hypertrophy
Diagnostic Accuracy ... Ventricular Hypertrophy Circulation ... 2009 #EBM #Diagnosis ... #Sensitivity #Specificity
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 USMLE Epidemiology and Biostatistics Summary Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Specificity (rule ... FN) Higher specificity ... Biostatistics #formulas #calculations ... #diagnosis
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