Female | Male | Total | P | |
---|---|---|---|---|
(n = 235) | (n = 264) | (n = 499) | ||
Age (%) | 0.046 | |||
≤ 65 years | 175 (74.5%) | 175 (66.3%) | 350 (70.1%) | |
> 65 years | 60 (25.5%) | 89 (33.7%) | 149 (29.9%) | |
Age (years), mean ± SD | 57.5 ± 11.1 | 59.7 ± 10.6 | 58.7 ± 10.9 | 0.027 |
BMI | 0.119 | |||
< 25 kg/m2 | 173 (73.6%) | 202 (76.5%) | 375 (75.2%) | |
≥ 25 kg/m2 | 47 (20%) | 37 (14%) | 84 (16.8%) | |
Missing | 15 (6.4%) | 25 (9.5%) | 40 (8%) | |
Smoking | 2 (0.9%) | 85 (32.2%) | 87 (17.4%) | < 0.001 |
Diabetes mellitus (%) | 0.844 | |||
Yes | 18 (7.7%) | 19 (7.2%) | 37 (7.4%) | |
No | 217 (92.3%) | 245 (92.8%) | 462 (92.6%) | |
Hypertension (%) | 0.641 | |||
Yes | 33 (14%) | 41 (15.5%) | 74 (14.8%) | |
No | 202 (86%) | 223 (84.5%) | 425 (85.2%) | |
Previous abdominal surgery (%) | 0.001 | |||
Yes | 53 (22.6%) | 30 (11.4%) | 83 (16.6%) | |
No | 182 (77.4%) | 234 (88.6%) | 416 (83.4%) | |
Preoperative serum albumin(g/L), mean ± SD | 41.2 ± 3.3 | 40.9 ± 3.3 | 41 ± 3.3 | 0.35 |
Neoadjuvant therapy (%) | 0.004 | |||
Yes | 0 (0%) | 9 (3.4%) | 9 (1.8%) | |
No | 235 (100%) | 255 (96.6%) | 490 (98.2%) | |
ASA score | 0.166 | |||
III–IV | 8 (3.4%) | 16 (6.1%) | 24 (4.8%) | |
I–II | 227 (96.6%) | 248 (93.9%) | 475 (95.2%) | |
Operation time (%) | 0.624 | |||
< 180 min | 185 (78.7%) | 203 (76.9%) | 388 (77.8%) | |
≥ 180 min | 50 (21.3%) | 61 (23.1%) | 111 (22.2%) | |
Tumor location (%) | 0.564 | |||
≤ 5 cm | 65 (27.7%) | 67 (25.4%) | 132 (26.5%) | |
> 5 cm | 170 (72.3%) | 197 (74.6%) | 367 (73.5%) | |
AJCC stage (%) | 0.063 | |||
0–II | 134 (57%) | 172(65.2%) | 306(61.3%) | |
III–IV | 101 (43%) | 92(34.8%) | 193(38.7%) | |
Type of anastomosis (%) | 0.284 | |||
Stapled | 222 (94.9%) | 243 (97%) | 465 (6.8%) | |
Hand-sewn | 13 (5.1%) | 21 (3%) | 34 (6.8%) | |
Estimated blood loss (%) | 0.238 | |||
≤ 300 ml | 223 (96.7%) | 256 (87.5%) | 479 (96%) | |
> 300 ml | 12 (3.3%) | 8 (12.5%) | 20 (4%) | |
Surgery approach (%) | 0.494 | |||
Laparoscopic surgery | 190 (80.9%) | 223 (84.5%) | 413 (82.8%) | |
Open surgery | 39 (16.6%) | 37 (14%) | 76 (15.2%) | |
Conversion | 6 (2.6%) | 4 (1.5%) | 10 (2%) | |
Postoperative serum albumin (g/L), mean ± SD | 28.9 ± 3.5 | 29.5 ± 3.5 | 29.3 ± 3.5 | 0.057 |
The average relative decline in serum albumin | 29.5% ± 8.8% | 27.6% ± 8.7% | 28.5% ± 8.8% | 0.015 |
Anastomotic leakage | 15 (6.4%) | 25 (9.5%) | 40 (8%) | 0.205 |