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. Author manuscript; available in PMC: 2019 Jan 1.
Published in final edited form as: BJU Int. 2017 Aug 16;121(1):77–83. doi: 10.1111/bju.13972

Table 6. Comparison between random biopsy and targeted biopsy.

Random biopsy Targeted biopsy
for index lesion
Total cores 5825 cores 1666 cores
Median number of cores per patient (range) 10.0 cores
(0–20)
2.0 cores
(1–8)
Cancer positive cores 495 cores 426 cores
Positive for any cancer
per core
8.5%
(495/5825 cores)
25.6%
(426/1666 cores)
p<0.001
Proportion of clinically insignificant cancer cores in all cancer positive cores 48.3%
(239/495 cores)
31.9%
(136/426 cores)
p<0.001
Median cancer core length
(range)
2.0 mm
(0.2–17)
5.0 mm
(0.16–19)
p<0.001
Positive for clinically significant cancer
per patient
14.9%
(91/609 patients)
20.7%
(130/629 patients)
p=0.009
Positive only with random biopsy Positive only with targeted biopsy
Clinically significant cancer 1.6%
(10/629 patients)
10.5%
(66/629 patients)
p<0.001