Variables | IC | p† | ||
---|---|---|---|---|
With (n = 95) | Without (n = 498) | |||
Sex | Male | 58 (9.8%) | 279 (47.0%) | 0.365 |
Female | 37 (6.2%) | 219 (37.0) | ||
Age* | Year | 69.2±10.1 | 66.6±11.2 | 0.035‡ |
BMI* | kg/m2 | 22.9±3.4 | 22.7±3.3 | 0.557‡ |
Smoking history | Yes | 18 (3.0%) | 97 (16.4%) | 0.905 |
No | 77 (13.0%) | 401 (67.6%) | ||
ASA score | < 3 | 79 (13.3%) | 456 (76.9%) | 0.011 |
≥3 | 16 (2.7%) | 42 (7.1%) | ||
Heart disease | Yes | 5 (0.8%) | 34 (5.7%) | 0.573 |
No | 90 (15.2%) | 464 (78.3%) | ||
Hypertension | Yes | 27 (4.6%) | 161 (27.2%) | 0.453 |
No | 68 (11.5%) | 337 (56.8%) | ||
Chronic pulmonary disease | Yes | 28 (4.7%) | 30 (5.1%) | < 0.001 |
No | 67 (11.3%) | 468 (78.9%) | ||
Diabetes mellitus | Yes | 30 (5.1%) | 59 (9.9%) | < 0.001 |
No | 65 (11.0%) | 439 (74.0%) | ||
Previous abdominal surgery | Yes | 30 (5.1%) | 143 (24.1%) | 0.574 |
No | 65(11.0%) | 355 (59.9%) | ||
Neoadjuvant chemo-radiotherapy | Yes | 12 (2.0%) | 51 (8.6%) | 0.488 |
No | 83 (14.0%) | 447 (75.4%) | ||
Preoperative hemoglobin | g/l | 104.5±30.1 | 118.5±24.4 | <0.001‡ |
Preoperative serum albumin | g/l | 43.5±13.2 | 41.7±16.7 | 0.475‡ |
Preoperative T stage | < 3 | 11 (1.9%) | 76 (12.8%) | 0.353 |
≥3 | 84 (14.1%) | 422 (71.2%) | ||
Preoperative N stage | Negative | 57 (9.6%) | 295 (49.7%) | 0.890 |
Positive | 38 (6.4%) | 203 (34.2%) | ||
Preoperative TNM stage | I | 11 (1.9%) | 69 (11.6%) | 0.788 |
II | 45 (9.9%) | 221 (37.3%) | ||
III | 39 (6.6%) | 208 (35.1%) | ||
Tumor Size* | cm | 4.7±1.4 | 4.5±1.5 | 0.357‡ |
Tumor Location | Right colon | 20 (3.4%) | 110 (18.5%) | <0.001 |
Transverse colon | 9 (1.5%) | 7 (1.2%) | ||
Left colon | 9 (1.5%) | 35 (5.9%) | ||
Sigmoid | 14 (2.4%) | 87 (14.7%) | ||
Rectum | 43 (7.3%) | 259 (43.7%) | ||
Blood transfusion★ | Yes | 29 (5.0%) | 47 (7.9%) | <0.001 |
No | 66 (11.1%) | 451 (76.1%) | ||
Surgical approach | Laparoscopic | 33 (5.6%) | 206 (34.7%) | 0.227 |
Open | 62 (10.5%) | 292 (4.2%) | ||
Combined organ resection | Yes | 2 (0.3%) | 18 (3.0%) | 0.455 |
No | 93 (15.7%) | 480 (80.9%) | ||
Intraoperative blood loss | ml | 168±61.6 | 118.2±55.4 | 0.014‡ |
Operation time | min | 229.6±68.8 | 204.1±56.6 | <0.001‡ |
Number of retrieved lymph nodes | - | 15.4±2.9 | 15.1±3.4 | 0.412‡ |