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diagnosis epidemiology biostatistics calculations mnemonic npv sensitivity specificity clearance cockcroftgault creatinine egfr mdrd negativepredictivevalue nephrology positivepredictivevalue challenges comparison criticalcare fluid
To improve the usefulness of the serum creatinine concentration as a marker of kidney function, prediction
predict GFR, these formulas ... commonly used formulas ... assistant medical calculation ... Neither formula ... #Calculation #Formulas
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 Important Biostatistics and Epidemiology Equations Sensitivity = TP / (TP + FN) = true positives / disease
and Epidemiology Equations ... Biostatistics #statistics ... #Epidemiology #Equations ... #calculations # ... #specificity #PPV
Positive Predictive Value Calculation - Probability that someone with a positive test actually has the disease Positive
Predictive Value Calculation ... PositivePredictiveValue #PPV ... Biostatistics #statistics ... #Epidemiology #Equations ... #calculations #
Negative Predictive Value Calculation - Probability that someone with a negative test truly does not have
Predictive Value Calculation ... NegativePredictiveValue #NPV ... Biostatistics #statistics ... #Epidemiology #Equations ... #calculations #
Specificity Calculation - Probability that a test correctly identifies those without the disease (true negative rate) Specificity
Specificity Calculation ... Biostatistics #statistics ... #Epidemiology #Equations ... #calculations #
Sensitivity Calculation - Probability that a test correctly identifies those with the disease (true positive rate) Sensitivity
Sensitivity Calculation ... Biostatistics #statistics ... #Epidemiology #Equations ... #calculations #
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
NegativePredictiveValue #Calculation ... #Table #PPV #NPV ... #Formulas #Statistics
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 Table 1. Equations for estimated glomerular filtration rate (eGFR) in adults based on serum creatinine concentration*. #Diagnosis
Equations for estimated ... CockcroftGault #EGFR #Equations ... #Calculation #Formulas
USMLE Epidemiology and Biostatistics Summary Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
PPV: proportion ... prevalence is low, then PPV ... specificity -> higher PPV ... Biostatistics #formulas ... #calculations #
Fluid Responsiveness and Fluid Tolerance Testing - OnePager Summary Fluid resuscitation can be beneficial when required or
Pressure Variation (PPV ... pulse pressure (PPV ... using proprietary formulas ... is analogous to PPV ... to the central circulation
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