Flashcards in Epidemiology Deck (18)
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1
Sensitivity
a/(a+c) = TP/(TP+FN)
2
Specificity
d/(b+d) = TN/(TN+FP)
3
PPV
a/(a+b) = TP/(TP+FP)
4
NPV
d/(c+d) = TN/(TN+FN)
5
which statistical values are affected by prevalence?
PPV and NPV
6
Positive Likelihood Ratio
sensitivity/1-specificity = TP/FP
7
Negative Likelihood Ratio
1-sensitivity/specificity = FN/TN
8
absolute risk
incidence
9
attributable risk
incidence of risk exposed - incidence of risk unexposed
10
Relative risk
Incidence in exposed / incidence unexposed (a ratio) = [a/(a+b)] / [c/(c+d)]
11
Odds ratio
ad / bc
12
Type 1 error
conclude there is a difference when in fact there is not
13
Type 2 error
conclude there is no difference when in fact there is
14
Power
Power = 1 - type 2 error
15
Live attenuated vaccines (6)
MMR, sabin polio, yellow fever, nasal flu
16
inactivated vaccines (5)
cholera, influenza, HAV, salk polio, rabies
17
Subunit vaccines (5)
HPV, HBV, pneumococcus, meningococcus, pertussis
18
