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Table 5 Characteristics of studies included in comparable meta-analysis reporting PSM rate

From: Oncological safety of intrafascial nerve-sparing radical prostatectomy compared with conventional process: a pooled review and meta-regression analysis based on available studies

First author

Selection balance

Criteria for Intra-RP

Criteria for Inter-RP

SSOS for Intra-RP

Percent of pT2 cancer, % (Intra-RP vs Inter-RP)

PSM rate, % (Intra-RP vs Inter-RP)

pT2

pT3

all-stage

VIP 2005

N

cT1c and PSA ≤ 10 and Gleason score ≤ 6

cT2a/b or PSA > 10 ≤ 20 or Gleason score = 7

11

   

2.2: 3.3

Zheng 2013

N

cT1/2a and PSA ≤ 10 and Gleason score ≤ 3 + 4 and positive cores≤3/12

cT2b/c or positive cores > 3/12 and PSA ≤ 10 and Gleason score ≤ 3 + 4

12

   

12.3: 16.2

Khoder 2014

N

cT1/2 and PSA ≤ 10 and Gleason score ≤ 6

cT1/2 and PSA ≤ 15 and Gleason score ≤ 7

8

92.3: 81.9

8.8: 18.1

72.2: 51.5

13.7: 24.2

Potdevin 2009

Y

cT1/2a and PSA ≤ 10 and Gleason score ≤ 7

8

75.7: 88.3

7.5: 5.9

41.2: 22.2

15.7: 7.8

Neil 2009

Y

cT1/2 and PSA ≤ 10 and absence of primary Gleason pattern 4/5

7

   

11.7: 11.1

Stolzenburg 2010

Y

cT1/2a and PSA < 10 and Gleason score ≤ 3 + 4

9

89: 81

6.2: 5.6

31.8: 26.3

9.0: 9.5

  1. Intra-RP intrafascial radical prostatectomy, Inter-RP interfascial radical prostatectomy, SSOS Selection Score of Oncologic Safety, VIP Vattikuti Institute Prostatectomy, Y yes, N no.