Decision curve analysis

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What if test 2 a scan?• This is a difficult question to answer!If the test was perfect, we wouldprobably perform no more than 20scans to find a cancer• Test harm = 0.05
Page 1 and 2: Decision curve analysisAndrew Vicke
Page 3 and 4: What am I doing here?Prediction mod
Page 5: How do you know thatprediction mode
Page 8 and 9: ResultsMarker Sensitivity Specifici
Page 10 and 11: ResultsMarker Sensitivity Specifici
Page 12 and 13: Principle• Sensitivity / specific
Page 14 and 15: Youden IndexSensitivity + Specifici
Page 16 and 17: AUC / C indexProbability correct id
Page 18 and 19: Brier Score(D - P) 2
Page 20 and 21: Net Reclassification Index
Page 22 and 23: When is it ever the case inmedicine
Page 24 and 25: Conclusion 1Prediction modelsare wo
Page 26 and 27: CanceraApplymodelBiopsyNo biopsyNo
Page 28 and 29: Threshold probabilityProbability of
Page 30 and 31: Intuitively• The threshold probab
Page 32 and 33: Illustrative example• Men with ra
Page 34 and 35: Free PSA
Page 36: Net benefit has simpleclinical inte
Page 39 and 40: Test 2Test 1
Page 41: Incorporating the harm of atestTrue
Page 45 and 46: Traditionalstatistical analysisTrad
Page 47 and 48: Very easy to use softwarefor Stata
Page 49: In summary…Prediction modelsare w

Decision curve analysis

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