Table 1 Baseline characteristics of all patients and according to the Internal obturator muscle (IOM) mass Index
Parameters | Overall | According to the IOM mass index | ||
|---|---|---|---|---|
Low IOM | High IOM | p-value | ||
Number | 222 | 111 | 111 | |
Age (years) | 67.82 ± 6.23 | 68.55 ± 6.11 | 67.10 ± 6.29 | 0.083 |
IOM (mm2/cm2) | 11.23 ± 2.22 | |||
BMI (kg/m2) | 24.46 ± 2.86 | 24.17 ± 2.86 | 24.74 ± 2.85 | 0.136 |
Pre-op PSA (ng/mL) | 11.61 ± 13.22 | 11.12 ± 12.29 | 12.11 ± 14.12 | 0.579 |
Prostate volume (cc) | 34.58 ± 14.13 | 35.56 ± 15.68 | 33.57 ± 12.33 | 0.313 |
Type of operation | 0.200 | |||
RRP | 163 (73.4) | 77 (69.4) | 86 (77.5) | |
LRP | 1 (0.5) | 0 | 1 (0.9) | |
RARP | 58 (26.1) | 34 (30.6) | 24 (21.6) | |
Gleason score | 0.441 | |||
≤ 6 | 59 (26.6) | 24 (21.6) | 35 (26.6) | |
7 | 145 (65.3) | 78 (70.3) | 67 (65.3) | |
8 | 8 (3.6) | 4 (3.6) | 4 (3.6) | |
9 | 10 (4.5) | 5 (4.5) | 5 (4.5) | |
T-stage | 0.717 | |||
T2a | 28 (12.6) | 14 (12.6) | 14 (12.6) | |
T2b | 38 (17.1) | 19 (17.1) | 19 (17.1) | |
T2c | 119 (53.6) | 56 (50.5) | 63 (56.8) | |
T3a | 21 (9.5) | 13 (11.7) | 8 (7.2) | |
T3b | 16 (7.2) | 9 (8.1) | 7 (6.3) | |
N-stage | 0.155 | |||
0 | 267 (97.1) | 111 (100) | 109 (98.2) | |
1 | 8 (2.9) | 0 (0.0) | 2 (1.8) | |
cM stage | 0.316 | |||
0 | 221 (99.5) | 110 (99.1) | 111 (100) | |
1 | 1 (0.5) | 1 (0.9) | 0 (0.0) | |
BCR | 0.871 | |||
0 | 173 (77.9) | 87 (78.4) | 86 (77.5) | |
1 | 49 (22.1) | 24 (21.6) | 25 (22.5) | |