Equation Review Flashcards
1
Q
Sensitivity
A
TP/(TP+FN)
2
Q
Specificity
A
TN/(TN+FP)
3
Q
Positive Predictive Value
A
TP/(TP+FP)
4
Q
Negative Predictive Value
A
TN/(TN+FN)
5
Q
Odds ratio (for case-control studies)
A
A/C divided by b/d = ad/bc
6
Q
Relative Risk
A
A/(a+b) divided by C/(c+d)
7
Q
Attributable risk
A
A/a+b - C/c+d
8
Q
Relative risk reduction
A
1-RR
9
Q
Absolute risk reduction
A
C/c+d -a/a+b
10
Q
NNT
A
1/ARR
11
Q
NNH
A
1/AR
12
Q
Hardy-Weinberg equation
A
p^2=2pq+q^2=1
p+q=1
13
Q
Volume of distribution
A
Amount of drug in body/ plasma concentration of drug
14
Q
Half life
A
O.693*Vd/CL
15
Q
Drug clearance
A
Rate of elimination of drug/ plasma concentration of drug =
Vd * Ke (elimination constant)
