36 results
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
that any given case ... PositivePredictiveValue #NegativePredictiveValue ... Calculation #Table #PPV ... #NPV #Formulas ... #Statistics #Matrix
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
Biostatistics #statistics ... #specificity #PPV ... #NPV
Negative Predictive Value Calculation - Probability that someone with a negative test truly does not have
Negatives #NegativePredictiveValue ... #NPV #Biostatistics ... #statistics #Epidemiology
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 ... NPV: proportion ... specificity -> higher PPV ... sensitivity -> higher NPV
Pap Smear Algorithm 
#Diagnosis #Pap #Smear #Test #Cervical #HPV #Screening #PrimaryCare #Management #Vaccination #Gynecology
Pap Smear Algorithm ... Test #Cervical #HPV
Arterial Lines & Waveforms
Arterial lines permit continuous invasive blood pressure measurement, frequent arterial blood sampling, and
PRESSURE VARIATION (PPV ... Pressure Variation (PPV ... intrathoracic pressure and causes ... volume (increased PPV
Genital Ulcer - Differential Algorithm
Painful
 - H. ducreyi (Chancroid)
 - HSV
Painless
 - T pallidum (Chancre)
 -
- Differential Algorithm ... Chlaymydia - HPV ... #Differential #Algorithm
Causes of Vertigo - Differential Diagnosis Algorithm
#Diagnosis #Neurology #Dizziness #Peripheral #Central #Algorithm #BPPV #Differential #Ddxof
Causes of Vertigo ... Differential Diagnosis Algorithm ... Peripheral #Central #Algorithm ... #BPPV #Differential
Oral Cavity Lesions in a patient with HIV/AIDS
White plaque
 - Pseudo-membranous candidiasis
 - Oral hairy leukoplakia
Mass - Wart (HPV ... Differential #Diagnosis #Algorithm
Positive Predictive Value Calculation - Probability that someone with a positive test actually has the disease

Positive
PositivePredictiveValue #PPV ... Biostatistics #statistics