14 results
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
USMLE Epidemiology ... and Biostatistics ... MD @rishimd #USMLE ... #Epidemiology #Biostatistics
Usmle step 2 ck
Pulmonary diseases (High yield points)
#usmle #algorithm
Usmle step 2 ck ... yield points) #usmle
Hormones acting on the kidney

#Pathophysiology #Nephrology #Renal #Kidney #Hormones #Nephron #Sites #Action

** GrepMed Recommended Text: First
First Aid for the USMLE
Which conditions are associated with which area of abdomen?

Image source: OConnell TX. USMLE Step 2 Secrets:
USMLE Step 2 Secrets
Intracranial Hemorrhages (ICH)

Epidural Hematoma vs Subdural Hematoma vs Subarachnoid Hemorrhage vs Intraparenchymal Hemorrhage

#Diagnosis #Radiology #Comparison #ICH
First Aid for the USMLE
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
TYPE I & TYPE II ERRORS 

SENSITIVITY & SPECIFICITY = SNOUT & SPIN 
Sensitive Tests that
Type2 #Errors #Biostatistics
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
ConfusionMatrix #Biostatistics
Likelihood Ratios - Probability
Remember 2/5/10 and 15/30/45:
 • LR of 2 increases the probability by 15%
LRs #diagnosis #biostatistics