Table 1.
Baseline clinicopathological characteristics of patients with colorectal cancer.
| Characteristics | Total | |
|---|---|---|
| Patient number | % | |
| Patient number | 263 | |
| Age (years), median (range) | 64 (30–83) | |
| <65 | 141 | 53.6 |
| ≥65 | 122 | 46.4 |
| Gender | ||
| Male | 141 | 53.6 |
| Female | 122 | 46.4 |
| Histology | ||
| Tubular adenocarcinoma | 233 | 88.6 |
| Others* | 30 | 11.4 |
| T stage | ||
| 1 | 1 | 0.4 |
| 2 | 51 | 19.4 |
| 3 | 163 | 62.0 |
| 4 | 48 | 18.2 |
| N stage | ||
| 0 | 114 | 43.3 |
| 1 | 80 | 30.4 |
| 2 | 69 | 26.2 |
| Stage | ||
| I | 38 | 14.4 |
| II | 67 | 25.5 |
| III | 101 | 38.4 |
| IV | 57 | 21.7 |
| Histological grade | ||
| Well/moderately | 222 | 84.4 |
| Poorly | 41 | 15.6 |
| Lymphovascular invasion | ||
| Negative | 99 | 37.6 |
| Positive | 164 | 62.4 |
| Site of primary tumor | ||
| Right colon | 69 | 26.2 |
| Left colon | 83 | 31.6 |
| Rectum | 111 | 42.2 |
| Curative resection (R0 resection) | ||
| Yes | 208 | 79.1 |
| No | 55 | 20.9 |
| Adjuvant therapy (n = 120) | ||
| 5-FU-based chemotherapy | 74 | 28.1 |
| 5-FU-based CCRT | 46 | 17.5 |
*Mucinous carcinoma (n = 28), signet-ring-cell carcinoma (n = 2).
Data are numbers of patients with percentages in parentheses unless otherwise specified.
SD: standard deviation; T1: tumor invades submucosa; T2: tumor invades muscularis propria; T3: tumor invades through the muscularis propria into the subserosa or into the nonperitonealized pericolic or perirectal tissues; T4: tumor perforates the visceral peritoneum or directly invades other organs; N1: metastasis in 1–3 pericolic or perirectal lymph nodes; N2: metastasis in >3 pericolic or perirectal lymph nodes; 5-FU: 5-fluorouracil, CCRT: concurrent chemoradiation therapy.