Table 1 Patient baseline characteristics
Characteristic | Dissection group (n = 37) | Non-dissection group (n = 264) | p value |
|---|---|---|---|
Sex | |||
Male | 21 (56.8) | 197 (74.6) | |
Female | 16 (43.2) | 67 (25.4) | 0.02 |
Age (years) | 60.38 ± 9.82 | 64.87 ± 11.52 | 0.01 |
6.71 ± 5.45 | 21.18 ± 132.85 | 0.60 | |
CEA (ng/mL) | |||
> 5.0 | 15 (40.5) | 112 (42.4) | |
≤ 5.0 | 22 (59.5) | 152 (57.6) | 0.83 |
22.19 ± 3.44 | 23.42 ± 11.90 | 0.37 | |
BMI (kg/m2) | |||
≥ 25 | 7 (18.9) | 64 (24.2) | |
< 25 | 30 (81.1) | 200 (75.8) | 0.48 |
History of laparotomy | |||
Yes | 11 (29.7) | 79 (29.9) | |
No | 26 (70.3) | 185 (70.1) | 0.98 |
ASA-PS | |||
1 | 27 (73.0) | 101 (38.3) | |
2 | 9 (24.3) | 128 (48.5) | |
3 | 1 (2.7) | 35 (13.3) | < 0.001 |
Preoperative diagnosis | |||
Depth | |||
T3 | 32 (86.5) | 219 (83.0) | |
T4 | 5 (13.5) | 45 (17.0) | 0.59 |
Lymph node metastasis (central direction) | |||
Yes | 26 (70.3) | 135 (51.1) | |
No | 11 (29.7) | 129 (48.9) | 0.03 |
Surgery | |||
Approach | |||
Laparotomy | 37 (100.0) | 37 (14.0) | |
Laparoscopy | 0 (0.0) | 227 (86.0) | < 0.001 |
Including anastomosis | |||
Yes | 28 (75.7) | 221 (83.7) | |
No | 9 (24.3) | 43 (16.3) | 0.23 |
Pathology | |||
Histopathology | |||
Well/moderate | 36 (97.3) | 236 (89.4) | |
Other | 1 (2.7) | 28 (10.6) | 0.10 |
Depth | |||
T1–2 | 6 (16.2) | 79 (29.9) | |
T3–4 | 31 (83.8) | 185 (70.1) | 0.08 |
Lymph node metastasis | |||
Central direction | 20 (54.1) | 122 (46.2) | 0.37 |
Lateral | 2 | – | |
Stage | |||
I/II | 17 (45.9) | 142 (53.8) | |
III | 20 (54.1) | 122 (46.2) | 0.37 |
Lymphatic invasion | |||
Yes | 11 (29.7) | 78 (29.8) | |
No | 26 (70.3) | 184 (70.2) | 0.996 |
Venous invasion | |||
Yes | 27 (73.0) | 193 (73.7) | |
No | 10 (27.0) | 69 (26.3) | 0.93 |
Nerve invasion | |||
Yes | 19 (54.3) | 105 (41.8) | |
No | 16 (45.7) | 146 (58.2) | 0.16 |
Postoperative adjuvant therapy | |||
Yes | 15 (40.5) | 92 (34.8) | |
No | 22 (59.5) | 172 (65.2) | 0.50 |