Supplementary Table 1.
Comparison of clinicopathological characteristics of patients classified according to treatment
| Clinicopathological characteristics | OP (n = 224) | BSC (n = 60) | P |
|---|---|---|---|
| Gender (male), n (%) | 179 (79.9) | 48 (80.0) | 0.988 |
| Age (years), mean ± SD | 78.3 ± 3.3 | 79.3 ± 4.0 | 0.060 |
| BMI (kg/m2), mean ± SD | 22.1 ± 3.7 | 22.0 ± 3.9 | 0.868 |
| Charlson comorbidity score, n (%) | |||
| <2 | 144 (64.3) | 37 (61.7) | 0.708 |
| ≥2 | 80 (35.7) | 23 (38.3) | |
| Performance status, n (%) | |||
| 0 | 7 (3.1) | 2 (3.3) | 0.018 |
| 1 | 82 (36.6) | 16 (26.7) | |
| 2 | 105 (46.9) | 23 (38.3) | |
| 3 | 30 (13.4) | 19 (31.7) | |
| POSSUM, n (%) | |||
| <20 | 136 (60.7) | 21 (35.0) | <0.001 |
| ≥20 | 88 (39.3) | 39 (65.0) | |
| Clinical stage, n (%) | |||
| I | 27 (12.1) | 6 (10.0) | 0.612 |
| II | 71 (31.7) | 23 (38.3) | |
| III | 126 (56.2) | 31 (51.7) | |
| Tumor location, n (%) | |||
| Upper one-third | 64 (28.6) | 13 (21.7) | 0.366 |
| Middle one-third | 26 (11.6) | 9 (15.0) | |
| Lower one-third | 99 (44.2) | 32 (53.3) | |
| Two-thirds or more | 35 (15.6) | 6 (10.0) | |
| Tumor size (cm), mean ± SD | 4.5 ± 1.8 | 4.8 ± 2.1 | 0.440 |
| Histology, n (%) | |||
| Differentiated | 97 (43.3) | 24 (40.0) | 0.646 |
| undifferentiated | 127 (56.7) | 36 (60.0) | |
| Histotype (Lauren), n (%) | |||
| Intestinal | 115 (51.3) | 28 (46.7) | 0.230 |
| Diffuse | 49 (21.9) | 20 (33.3) | |
| Mixed | 49 (21.9) | 11 (18.3) | |
| Other | 11 (4.9) | 1 (1.7) | |
| Grading (Bormann), n (%) | |||
| I | 34 (15.2) | 13 (21.7) | 0.550 |
| II | 57 (25.4) | 15 (25.0) | |
| III | 129 (57.6) | 30 (50.0) | |
| IV | 4 (1.8) | 2 (3.3) |
BMI: Body mass index; BSC: Patients who received best supportive care except Stage IV or performance status 4; OP: Patients who underwent a curative operation; POSSUM: Physiological and operative severity score for the enumeration of mortality and morbidity; SD: Standard deviation; BMI: Body mass index.