Table 1.
Baseline clinical characteristics of colorectal cancer patients according to tumor differentiation.
| Characteristics | Total (n = 200) | Well-differentiated (G1) (n = 97) | Moderately differentiated (G2) (n = 57) | Poorly differentiated (G3) (n = 46) | χ²/F | P-value |
|---|---|---|---|---|---|---|
| Gender, n (%) | ||||||
| Male | 120 (60.0%) | 60 (61.9%) | 32 (56.1%) | 28 (60.9%) | 0.462 | .794 |
| Female | 80 (40.0%) | 37 (38.1%) | 25 (43.9%) | 18 (39.1%) | ||
| Age (yr, mean ± SD) | 60.8 ± 10.2 | 61.3 ± 10.5 | 59.9 ± 9.8 | 60.4 ± 10.3 | 0.321 | .726 |
| Tumor location, n (%) | ||||||
| Ascending colon | 70 (35.0%) | 35 (36.1%) | 18 (31.6%) | 17 (37.0%) | 1.825 | .768 |
| Transverse colon | 30 (15.0%) | 13 (13.4%) | 9 (15.8%) | 8 (17.4%) | ||
| Descending colon | 50 (25.0%) | 26 (26.8%) | 14 (24.6%) | 10 (21.7%) | ||
| Sigmoid colon | 50 (25.0%) | 23 (23.7%) | 16 (28.0%) | 11 (23.9%) | ||
| Tumor size (cm, mean ± SD) | 4.8 ± 1.7 | 4.3 ± 1.5 | 5.0 ± 1.6 | 5.5 ± 1.8 | 6.235 | .002 |
| TNM stage, n (%) | ||||||
| Stage I–II | 120 (60.0%) | 70 (72.2%) | 33 (57.9%) | 17 (37.0%) | 15.632 | <.001 |
| Stage III–IV | 80 (40.0%) | 27 (27.8%) | 24 (42.1%) | 29 (63.0%) | ||
| Lymph node metastasis, n (%) | ||||||
| Yes | 120 (60.0%) | 48 (49.5%) | 36 (63.2%) | 36 (78.3%) | 14.108 | .001 |
| No | 80 (40.0%) | 49 (50.5%) | 21 (36.8%) | 10 (21.7%) | ||
| Distant metastasis, n (%) | ||||||
| Yes | 30 (15.0%) | 5 (5.1%) | 8 (14.0%) | 17 (37.0%) | 22.445 | <.001 |
| No | 170 (85.0%) | 92 (94.9%) | 49 (86.0%) | 29 (63.0%) | ||
SD = standard deviation, TNM = Tumor, Node, Metastasis Classification System.