2442 results
TYPE I & TYPE II ERRORS 

SENSITIVITY & SPECIFICITY = SNOUT & SPIN 
Sensitive Tests that
Sensitive Tests that are ... Specific Tests that are ... Type2 #Errors #Biostatistics
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
Important Biostatistics ... = Rule IN #Biostatistics
Janeway Lesion: Flat, painless, erythematous lesions seen on the palm of this patient's hand. While
frequently associated
this case, they are ... aneurysm (inflamed area ... Photo credit, Josh ... Images #Clinical #Photo
An Overview on P-Values

"The widespread use of "statistical significance" (generally interpreted as "p <= 0.05") as
#PValues #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
Cafe Au Lait Spots: Pigmented areas adjacent to multiple neurofibromas.

Charlie Goldberg, M.D. - UCSD Catalog of
Spots: Pigmented areas ... Neurofibromas #Photo
Schistocytes can assume a shape resembling natural or man-made objects such as arrowheads, fish, collar buttons,
seen in the left photo ... are a teardrop ... In the right photo ... are 2 other poikilocytes
Codocytes (Target cells) - Two target cells are seen in the left photo and one in
Two target cells are ... seen in the left photo ... present in the left photo ... are a Howell-Jolly ... Target cells are
Splenomegaly: Massively enlarged spleen, the result of extramedullary hematopoiesis, is outlined above.
This patient's left upper quadrant
corresponding area ... Images #Clinical #Photo