Alzheimer's research in ‘major step’ towards blood test

Re:Alzheimer's research in ‘major step’ towards blood test by glaugh on Tuesday July 08, 2014 @10:59AM (#8004800)

Really wish they broke "86% accuracy" into precision and recall.

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Re:Alzheimer's research in ‘major step’ towards blood test by icegreentea on Tuesday July 08, 2014 @11:20AM (#8004912)

Here's the paper: http://www.sciencedirect.com/science/article/pii/S1552526014...

Re your comment: "accuracy 87%, sensitivity 85%, and specificity 88%"

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Re:Alzheimer's research in ‘major step’ towards blood test by skierscott on Tuesday July 08, 2014 @11:29AM (#8004954)

What does that mean for false positive and true negative?

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Re:Alzheimer's research in ‘major step’ towards blood test by icegreentea on Tuesday July 08, 2014 @12:38PM (#8005375)

Sensitivity is the true positive rate, specificity is the true negative rate.

From the body of the paper, for their chosen test, their False Positive Rate appears to be 21.2% (100% - 68.8%) and their False Negative Rate appears to be 5.1% (100% - 94.9%). For this type of test, its the false negative rate that we'll really worry about.

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Re:Alzheimer's research in ‘major step’ towards blood test by taralx on Tuesday July 08, 2014 @04:39PM (#8006620)

Wow, that's odd. Why does accuracy drop when MRI is included?

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Re:Alzheimer's research in ‘major step’ towards blood test by glaugh on Tuesday July 08, 2014 @05:32PM (#8006848)

Ah, much appreciated.

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