Table 1 Patient clinicopathological characteristics.
Unweighted population | Weighted population | |||||||
|---|---|---|---|---|---|---|---|---|
Non-SCT group (n = 1380) | SCT group (n = 309) | P value | SMD | Non-SCT group (n = 254.84) | SCT group (n = 309) | P value | SMD | |
Age (years) | 61.64 ± 12.46 | 58.84 ± 11.25 | < 0.001 | 0.236 | 59.51 ± 11.45 | 58.84 ± 11.25 | 0.381 | 0.059 |
Sex | ||||||||
Female | 436 (31.6%) | 116 (37.5%) | 0.052 | 0.125 | 88.1 (34.6%) | 116 (37.5%) | 0.382 | 0.062 |
Male | 944 (68.4%) | 193 (62.5%) | 166.7 (65.4%) | 193 (62.5%) | ||||
BMI (kg/m2) | 23.96 ± 3.24 | 24.21 ± 3.45 | 0.224 | 0.075 | 24.20 ± 3.38 | 24.21 ± 3.45 | 0.987 | 0.001 |
ASA score | ||||||||
I | 683 (49.5%) | 183 (59.2%) | 0.008 | 0.197 | 139.4 (54.7%) | 183 (59.2%) | 0.424 | 0.093 |
II | 655 (47.5%) | 119 (38.5%) | 108.4 (42.5%) | 119 (38.5%) | ||||
III | 42 (3.0%) | 7 (2.3%) | 7.1 (2.8%) | 7 (2.3%) | ||||
Preoperative WBC counts | 6.62 ± 1.88 | 6.39 ± 1.85 | 0.052 | 0.123 | 6.40 ± 1.78 | 6.39 ± 1.85 | 0.946 | 0.005 |
Preoperative hemoglobin level (g/dL) | 13.61 ± 2.09 | 13.90 ± 1.62 | 0.021 | 0.157 | 13.94 ± 1.68 | 13.90 ± 1.62 | 0.765 | 0.020 |
Preoperative albumin level (g/dL) | 4.46 ± 0.46 | 4.56 ± 0.32 | < 0.001 | 0.267 | 4.55 ± 0.37 | 4.56 ± 0.32 | 0.455 | 0.048 |
Clinical T stage | ||||||||
T1 | 733 (54.0%) | 144 (46.8%) | < 0.001 | 0.366 | 124.9 (49.0%) | 144 (46.8%) | 0.625 | 0.094 |
T2 | 158 (11.6%) | 71 (23.1%) | 49.1 (19.3%) | 71 (23.1%) | ||||
T3 | 195 (14.4%) | 55 (17.9%) | 46.5 (18.3%) | 55 (17.9%) | ||||
T4 | 272 (20.0%) | 38 (12.3%) | 34.4 (13.5%) | 38 (12.3%) | ||||
Clinical N stage | ||||||||
N − | 926 (66.6%) | 224 (72.4%) | 0.059 | 0.125 | 178.3 (70.0%) | 224 (72.4%) | 0.426 | 0.056 |
N + | 454 (33.4%) | 85 (27.6%) | 76.5 (30.0%) | 85 (27.6%) | ||||
Tumor size (cm) | 3.67 ± 2.63 | 3.33 ± 2.20 | 0.034 | 0.141 | 3.32 ± 2.22 | 3.33 ± 2.20 | 0.947 | 0.004 |
Number of harvested LN | 37.89 ± 13.35 | 39.04 ± 13.80 | 0.176 | 0.084 | 39.21 ± 13.56 | 39.04 ± 13.80 | 0.857 | 0.013 |
Lauren classification | ||||||||
Diffuse | 442 (32.9%) | 120 (39.6%) | 0.160 | 0.143 | 87.3 (34.2%) | 120 (39.6%) | 0.737 | 0.149 |
Intestinal | 639 (47.5%) | 129 (42.6%) | 114.3 (44.9%) | 129 (42.6%) | ||||
Mixed | 230 (17.1%) | 46 (15.2%) | 41.6 (16.3%) | 46 (15.2%) | ||||
Indeterminant | 33 (2.5%) | 8 (2.6%) | 11.7 (4.6%) | 8 (2.6%) | ||||
pStage | ||||||||
I | 906 (65.7%) | 215 (69.6%) | 0.076 | 0.150 | 180.5 (70.8%) | 215 (69.6%) | 0.276 | 0.109 |
II | 231 (16.7%) | 56 (18.1%) | 37.1 (14.6%) | 56 (18.1%) | ||||
III | 243 (17.6%) | 38 (12.3%) | 37.2 (14.6%) | 38 (12.3%) | ||||
