2303 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
An Overview on P-Values

"The widespread use of "statistical significance" (generally interpreted as "p <= 0.05") as
#PValues #BioStatistics
Pneumonia on Chest Xray and POCUS

Extensive pneumonia in lower left lobe (red arrow). 
POCUS: Dynamic air
Chest Xray and POCUS ... POCUS: Dynamic air ... bronchogram (green arrows ... AirBronchogram #POCUS
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
ConfusionMatrix #Biostatistics
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Epidemiology and Biostatistics ... Affected by random error ... by systematic error ... true Type II (β) error ... #Epidemiology #Biostatistics
Likelihood Ratios - Probability
Remember 2/5/10 and 15/30/45:
 • LR of 2 increases the probability by 15%
LRs #diagnosis #biostatistics
Inferior Regional Wall Motion Abnormalities on POCUS Echocardiogram

Older male with chest pain, diaphoresis. ECG with concerning
Abnormalities on POCUS ... inferoseptal (between arrows ... #Abnormality #POCUS
Lab patterns seen in Inborn Errors of Metabolism

A table of lab values compiled from UpToDate and
seen in Inborn Errors
A schema of the pathophysiology of the inborn errors of metabolism, excluding complex storage diseases. Helps
of the inborn errors