Skip to main content

Table 2 Comparison of clinical and pathological parameters according to body mass index

From: Effect of pre-operative internal obturator muscle mass index in MRI on biochemical recurrence of prostate cancer patients after radical prostatectomy: a multi-center study

Parameter  ≤ Normal Overweight Obese p-value
Number 63 73 86  
Age (years) 68.57 ± 6.06 68.07 ± 6.85 67.07 ± 5.76 0.321
IOM (mm2/cm2) 10.84 ± 2.18 11.13 ± 2.02 11.59 ± 2.37 0.115
BMI (kg/m2) 21.11 ± 1.45 24.06 ± 0.51 27.25 ± 1.79  < 0.001
Pre-op PSA (ng/mL) 13.97 ± 17.97 11.01 ± 10.93 10.40 ± 10.57 0.237
Prostate volume (cc) 32.54 ± 12.95 33.01 ± 14.39 37.54 ± 14.42 0.062
Type of operation     0.291
RRP 48 (76.2) 58 (79.5) 57 (66.3)  
LRP 0 (0.0) 0 (0.0) 1 (1.2)  
RARP 15 (23.8) 15 (20.5) 28 (32.6)  
Gleason score     0.165
 ≤ 6 14 (22.2) 20 (27.4) 25 (29.1)  
7 43 (68.3) 49 (67.1) 53 (61.6)  
8 5 (7.9) 1 (1.4) 2 (2.3)  
9 1 (1.6) 3 (4.1) 6 (7.0)  
T-stage     0.220
T2a 7 (11.1) 14 (19.2) 7 (8.1)  
T2b 7 (11.1) 13 (17.8) 18 (20.9)  
T2c 37 (58.7) 37 (50.7) 45 (52.3)  
T3a 5 (7.9) 5 (6.8) 11 (12.8)  
T3b 7 (11.1) 4 (5.5) 5 (5.8)  
N-stage     0.524
0 62 (98.4) 72 (98.6) 86 (100)  
1 1 (1.6) 1 (1.4) 0 (0.0)  
cM stage     0.282
0 62 (98.4) 73 (100) 86 (100.0)  
1 1 (1.6) 0 (0.0) 0 (0.0)  
BCR     0.521
0 46 (73.0) 59 (80.8) 68 (79.1)  
1 17 (27.0) 14 (19.2) 18 (20.9)  
  1. IOM, Internal obturator muscle mass index; BMI, body mass index; pre-op PSA, pre-operative prostate-specific antigen; RRP, radical retropubic prostatectomy; LRP, laparoscopic radical prostatectomy; RARP, robot-assisted radical prostatectomy; BCR, biochemical recurrence