Table 1 demographic and perioperative characteristics between hernia group and no-hernia group
Characteristic | hernia group (N = 53) | no-hernia group (N = 698) | total (N = 751) | statistic (t、W、χ2) | P |
|---|---|---|---|---|---|
age-(years) | |||||
mean ± sd | 71.00 ± 5.59 | 68.57 ± 6.70 | 68.74 ± 6.65 | t = −2.575 | 0.01020 |
range | 54–81 | 28–86 | 28–86 | ||
BMI-(kg/m2) | |||||
mean ± sd | 23.34 ± 0.51 | 23.97 ± 2.96 | 23.96 ± 2.93 | t = 0.300 | 0.765 |
range | 22.99–23.70 | 16.89–30.82 | 16.90–30.82 | ||
previous abdominal operations -no.(%) | |||||
yes | 11 (20.8) | 128 (18.4) | 139 (18.6) | χ2 = 0.182 | 0.670 |
no | 42 (79.2) | 568 (81.6) | 610 (81.4) | ||
diabetes mellitus history -no.(%) | |||||
yes | 11 (20.8) | 88 (12.6) | 99 (13.2) | χ2 = 2.825 | 0.093 |
no | 42 (79.2) | 608 (87.4) | 650 (86.8) | ||
hypertension history -no.(%)a | |||||
yes | 25 (47.2) | 274 (39.4) | 299 (39.9) | χ2 = 1.250 | 0.264 |
no | 28(52.8) | 422 (60.6) | 450 (60.1) | ||
previous hernia -no.(%)a | |||||
yes | 5 (9.4%) | 31 (4.5) | 36 (4.8) | χ2 = 2.659 | 0.103 |
no | 48 (90.6) | 664 (95.5) | 712 (95.2) | ||
preoperative Gleasona | |||||
< 7 | 17 (32.1) | 131 (19.1) | 148 (20.0) | χ2 = 6.048 | 0.049 |
7 | 25 (47.2) | 340 (49.5) | 365 (49.3) | ||
> 7 | 11 (20.8) | 216 (31.4) | 227 (30.7) | ||
T-stage-no.(%)a | |||||
T1 | 11 (20.8) | 69 (10.0) | 80 (10.8) | χ2 = 10.174 | 0.038 |
T2 | 32 (60.4) | 394 (57.1) | 426 (57.3) | ||
T3 | 9 (17.0) | 145 (21.0) | 154 (20.7) | ||
T4 | 1 (1.9) | 80 (11.6) | 81 (10.9) | ||
PLND-no.(%)a | |||||
yes | 31 (58.5) | 423 (61.3) | 454 (61.1) | χ2 = 0.164 | 0.686 |
no | 22 (41.5) | 267 (38.7) | 289 (38.9) | ||
operative methods -no.(%) | |||||
LRP | 43 (81.1) | 594 (85.2) | 638 (84.8) | χ2 = 8.442 | 0.038 |
RALP | 1 (1.9) | 53 (7.6) | 54 (7.2) | ||
RRP | 9 (17.0) | 50 (7.2) | 59 (7.9) | ||
operative approach -no.(%)a | |||||
extraperitoneal | 26 (49.1) | 268 (38.5) | 294 (39.1) | χ2 = 2.404 | 0.301 |
transperitoneal | 27 (50.9) | 429 (61.5) | 456 (60.7) | ||
operative time-(min) | |||||
median(P25, P75) | 150.0 (120.0,215.0) | 175.0 (130.0,210.0) | 170 (130,210) | W = 16,154 | 0.151 |
estimated blood loss-(ml)a | |||||
< 500.0 | 24 (66.7) | 311 (66.2) | 335 (66.2) | χ2 = 0.060 | 0.970 |
< 1000.0 | 10 (27.8) | 128 (27.2) | 138 (27.3) | ||
< 2000.0 | 2 (5.6) | 31 (6.6) | 33 (6.5) | ||