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closeDefinition of Specificity at Table 4
Posted by nlsim on 08 Sep 2011 at 07:18 GMT
Greetings,
Just wondering if Specificity should be TN / (TN + FP) instead of TP / (TP + FP)? If the former is correct, then the Specificity values for deFuse-Threshold, deFuse-Classifier and FusionSeq should be 4/7, 3/4 and 0 respectively, instead of 100%, 94% and 76.5%...
RE: Definition of Specificity at Table 4
sohrab replied to nlsim on 13 Sep 2011 at 20:48 GMT
Hello nlsim -
Thank you for pointing this out. You are correct that the numbers reported are not specificity. Rather they are positive predictive value (PPV). The Table 4 column header for the last column should therefore instead be PPV. It is also true that the actual specificity values should be: 4/7, 3/4 and 0 respectively as you state in your comment.