Table 1.
The distributions of demographical and clinical characteristics in 479 controls and 479 patients with CRC.
| Variable | Controls (N = 479) n (%) |
Patients (N = 479) n (%) |
p Value |
|---|---|---|---|
| Age (yrs) | |||
| <65 | 278 (58.0%) | 251 (52.4%) | 0.079 |
| ≥65 | 201 (42.0%) | 228 (47.6%) | |
| Gender | |||
| Male | 294 (61.4%) | 282 (58.9%) | 0.428 |
| Female | 185 (38.6%) | 197 (41.1%) | |
| Tumor location | |||
| Rectum | 110 (23.0%) | ||
| Left colon | 222 (46.3%) | ||
| Right colon | 147 (30.7%) | ||
| Stage | |||
| I + II | 229 (47.8%) | ||
| III + IV | 250 (52.2%) | ||
| Tumor T status | |||
| T1–T2 | 116 (24.2%) | ||
| T3–T4 | 363 (75.8%) | ||
| Lymph node status | |||
| N0 | 239 (49.9%) | ||
| N1 + N2 | 240(50.1%) | ||
| Metastasis | |||
| M0 | 402 (83.9%) | ||
| M1 | 77 (16.1%) | ||
| Lymphovascular invasion | |||
| No | 267 (55.7%) | ||
| Yes | 212 (44.3%) | ||
| Perineural invasion | |||
| No | 272 (56.8%) | ||
| Yes | 207 (43.2%) | ||
| Pathologic grading | |||
| Well | 6 (1.3%) | ||
| Moderately | 437 (91.2%) | ||
| Poorly | 36 (7.5%) |