. 2014 Jun 17;2(3):114–120. doi: 10.12954/PI.14052

Table 3.

Concordance of prostate cancer in prostatectomy specimen and biopsy

	Prostate cancer (+)	Prostate cancer (−)	Total
Biopsy (+)	344^a)	29^b)	373
Biopsy (−)	141^c)	834^d)	975
Total	485	863	1,348

Sensitivity (=TP/[TP+FN]), 70.9%; specificity (=TN/[FP+TN]), 96.6%; positive predictive value (=TP/[TP+FP]), 92.2%; negative predictive value (=TN/[TN+FN]), 85.5%.

^a)

True positive (TP).

^b)

False positive (FP).

^c)

False negative (FN).

^d)

True negative (TN).