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. Author manuscript; available in PMC: 2013 Apr 11.
Published in final edited form as: Int Urol Nephrol. 2011 Jun 26;44(2):459–470. doi: 10.1007/s11255-011-0020-0

Table 1.

Comparison of Gleason upgrading in potential active surveillance patients

Variable Group 1 (n = 750)
All AS-eligible patients
Group 1A (n = 453)
No Gleason upgrading
Group 1B (n = 297)
Positive Gleason upgrading
P value/X2
Mean age 59 ± 6.9 58.9 ± 7 59.4 ± 6.7 0.279
Mean BMI 27 ± 3.8 26.7 ± 3.8 27.5 ± 3.7 0.004
Mean preop PSA 4.6 ± 1.9 4.4 ± 1.9 5.0 ± 1.8 <0.0001
Total Bx cores 0.89
   <18 87.9 87.7 88.1
   ≥18 12.1 12.3 11.9
Total positive cores <0.001
   1 68.3 74.6 58.6
   2 31.7 25.4 41.4
Max % of cancer in biopsy 0.02
   ≤5 50.9 54.5 45.5
   >5 49.1 45.5 54.5
Clinical stage 0.5
   T1 96.4 96 97
   T2a 3.6 4 3
HGPIN on Bx 0.37
   No 88.1 89.3 87.2
   Yes 11.9 10.7 12.8
Prostate volume 54 ± 23.2 55.2 ± 24.1 52.1 ± 21.5 0.08
Gleason pathology <0.0001
   ≤6 60.4 100 0
   7 39.2 0 99
   8, 9, 10 0.4 0 1
   pTNM <0.0001
   T1–2 96.1 98.7 92.3
   T3–4 3.9 1.3 7.7
Positive SM rate 4.7 2.4 8.1 <0.0001