EBP Flashcards
1
Q
Sensitivity
A
= A / (A+C)
“true positive”
2
Q
Specificity
A
= D / (D+B)
“true negative”
3
Q
SnNout
A
if Sn is high, a negative result is useful for ruling OUT the condition
4
Q
SpPin
A
if Sp is high, a positive result is useful for ruling IN the condition
5
Q
Positive Likelihood Ratio
A
= Sn / (1-Sp)
*tests with large (+)LR generally have high specificity
High = >10
6
Q
Negative Likelihood Ratio
A
= (1-Sn) / Sp
*tests with small (-)LR generally have high sensitivity
High = <0.1
