Table 1 Clinicopathological features between the TSME and TME groups
Factors | TSME, n = 46 | TME, n = 138 | P value |
|---|---|---|---|
Age (years) | 64.05 ± 9.59 | 63.50 ± 11.6 | 0.598 |
Gender | 0.297 | ||
Male | 31 (67.4%) | 81 (58.7%) | |
Female | 15 (32.6%) | 57 (41.3%) | |
BMI (kg/m2) | 22.59 ± 3.81 | 20.88 ± 4.33 | 0.588 |
Comorbidity | |||
Cardiovascular disease | 10 (21.7%) | 25 (18.2%) | 0.603 |
Respiratory disease | 3 (5.5%) | 8 (5.8%) | 0.858 |
Diabetes mellitus | 9 (19.6%) | 26 (18.2%) | 0.930 |
Histological type | 0.546 | ||
Differentiated type | 32 (69.6%) | 100 (72.5%) | |
Undifferentiated type | 14 (30.4%) | 38 (27.5%) | |
Tumor size (mm) | 37.26 ± 14.75 | 36.62 ± 12.70 | 0.150 |
T category | 0.482 | ||
T1 | 2 (4.3%) | 19 (13.8%) | |
T2 | 18 (39.1%) | 50 (36.2%) | |
T3 | 14 (30.4%) | 39 (28.3%) | |
T4 | 12 (26.1%) | 30 (21.7%) | |
N category | 0.381 | ||
N0 | 9 (19.6%) | 35 (25.4%) | |
N1 | 30 (65.2%) | 78 (56.5%) | |
N2 | 7 (15.2%) | 25 (18.1%) | |
Conversion to open surgery | 0 | 1 (0.7%) | 0.559 |
Operation time (min) | 218.56 ± 35.85 | 201.13 ± 42.65 | 0.004 |
Blood loss (ml) | 25.76 ± 27.87 | 18.00 ± 24.91 | 0.997 |
Lymph node dissection | 19.43 ± 9.46 | 18.03 ± 7.43 | 0.024 |