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Table 2 Univariable and Multivariable analysis of factors associated with PSM

From: Predictors of adverse pathologic features after radical prostatectomy in low-risk prostate cancer

  Univariable   Multivariable  
HR (95% CI) p Value HR (95% CI) p Value
Age 1.01 (0.98–1.03) 0.64   
BMI 1.02 (0.95–1.09) 0.58   
Type of operation
 Open 1 (ref)    
 Robotic 1.35 (0.89–2.04) 0.16   
Prostate volume measured by TRUS 1.00 (0.99–1.02) 0.53   
PSA 1.15 (1.05–1.27) < 0.01 1.14 (1.03–1.25) 0.01
Number of positive biopsy core 1.14 (1.03–1.26) 0.01 1.12 (1.01–1.24) 0.03
Percentage of positive biopsy core 1.01 (1.00–1.02) 0.05   
Maximal percentage in each positive core 1.00 (0.99–1.01) 0.57   
  1. BMI=Body mass index; PSA = Prostate specific antigen; PSM = Positive surgical margin; TRUS = Transrectal ultrasonography