Innholdsfortegnelse
Likelihood ratios, odds ratios, risk ratios, and all that...
The 2x2 table
Test sensitivity & specificity
SpPin & SnNout
PPV & NPV
PPv = Positive predictive value =Post-test prob. OF A POSITIVE TEST
NPV = Negative predictive value BUT 1-NPV = Post-test prob of a negative test....
Prevalence = pre-test probability
Accuracy
Pre-test odds
LR +
LR -
Post-test odds + Post-test odds -
Post-test odds + Post-test odds -
Post-test probability
The Fagan nomogram
The Fagan nomogram
The Fagan nomogram
Prevalence 0.5% sens 90% spec 90%
Prevalence 5% sens 90% spec 90%
Prevalence 50% sens 90% spec 90%
Prevalence 90% sens 90% spec 90%
Prevalence 5% sens 97% spec 97%
Prevalence 5% sens 97% spec 80%
Prevalence 5% sens 80% spec 97%
Prevalence 5% sens 80% spec 80%
Odds ratio vs. risk ratio 1
Odds ratio vs. risk ratio 2
Odds ratio vs. risk ratio 3
Odds ratio vs. risk ratio 4
Odds ratio vs. risk ratio 5
ROC plots
ROC plots
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Forfatter:Kopirommet
E-post: atle.klovning@isf.uib.no
Hjemmeside: http://www.uib.no/isf/people/atle/
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