13 results
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
and Epidemiology Equations ... Biostatistics #statistics ... #Epidemiology #Equations ... #specificity #PPV ... #NPV
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
Sensitivity is the ... Sensitivity indicates ... that any given case ... #NPV #Formulas ... #Statistics #Matrix
►
Sensitivity Calculation - Probability that a test correctly identifies those with the disease (true positive rate)

Sensitivity
Sensitivity Calculation ... positive rate) Sensitivity ... TP / (TP + FN) Sensitivity ... Biostatistics #statistics ... #Epidemiology #Equations
Negative Predictive Value Calculation - Probability that someone with a negative test truly does not have
NegativePredictiveValue #NPV ... Biostatistics #statistics ... #Epidemiology #Equations
Positive Predictive Value Calculation - Probability that someone with a positive test actually has the disease

Positive
PositivePredictiveValue #PPV ... Biostatistics #statistics ... #Epidemiology #Equations
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Sensitivity (rule ... NPV: proportion ... Higher sensitivity ... -> higher NPV ... but not on the causal
Causes of Encephalopathy - Differential Diagnosis Algorithm
Hyperacute:
 - Primary Neurologic: Vascular (IS, ICH), Seizure, Migraine, Trauma
Causes of Encephalopathy ... Differential Diagnosis Algorithm ... Degenerative, NPH ... Differential #Diagnosis #Algorithm ... #Causes
Erythrocytosis - Polycythemia Differential Diagnosis Algorithm

Elevated Hemoglobin:
 • Males: Hb > 16.5 g/dL/HCT ≥ 49%
 •
Differential Diagnosis Algorithm ... Polycythemia - Acquired Causes ... Polycythemia #Vera #PV ... Differential #Diagnosis #Algorithm
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Causes of Primary ... Differential Diagnosis Algorithm ... : • Androgen insensitivity ... Differential #Diagnosis #Algorithm ... #Causes #OBGyn
APVcmv - Adaptive Pressure Ventilation - Controlled Mechanical Ventilation Summary
Most Similar to PRVC - Pressure Regulated
patient trigger and sensitivity ... target volume Casey ... caseyalbin #APVcmv #APV