462 results
TYPE I & TYPE II ERRORS 

SENSITIVITY & SPECIFICITY = SNOUT & SPIN 
Sensitive Tests that
TYPE I & TYPE II ERRORS ... #Type1 #Type2 #Errors ... #Biostatistics
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
Important Biostatistics ... = Rule IN #Biostatistics
Borrelia recurrentis Infection - Spirochetes were visible (arrows), a finding that suggested louseborne relapsing fever #Clinical
were visible (arrows ... Smear #Microscopy #NEJM
Auer Rods - Bone marrow aspiration revealed 5% blasts and 65% promyelocytes; many promyelocytes had prominent
prominent Auer rods (arrows ... Smear #Microscopy #NEJM
Nystagmus from Wernicke’s Encephalopathy - Magnetic resonance imaging of the brain showed T2 hyperintensities involving the
thalami (Panel B, arrows ... MRI #Thalamus #NEJM
An Overview on P-Values

"The widespread use of "statistical significance" (generally interpreted as "p <= 0.05") as
#PValues #BioStatistics
Urinary Tract Tuberculosis - Contrast-enhanced computed tomography (CT) of the abdomen showed mild dilatation of the
Panels A and B, arrows ... ureter (Panel C, arrows ... AcidFastBacilli #Microscopy #NEJM
Creutzfeldt-Jakob Disease - Magnetic resonance imaging (MRI) revealed hyperintensity of the cortical gyri of the frontal
sides (Panel B, arrows ... CreutzfeldJakob #NEJM
Emphysematous Prostatitis - Radiography of the kidney, ureter, and bladder showed an atypical focus of gas
ramus (Panel A, arrows ... #Prostatitis #NEJM
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
ConfusionMatrix #Biostatistics