Table 1.
Demographics of patients. Age, sex, and TNM (tumor, nodes, metastasis-classification) stages were analyzed for patients with peripheral blood (PB) and mesenteric vein blood (MVB) samples (A,B). Lymph node metastasis was analyzed in (C). The ratio of carcinoembryonic antigen (CEA) and carbohydrate antigen 19-9 (CA19-9) in the whole assemblage was calculated (C).
| (A) Peripheral Vein Blood (PB) | ||
| Characteristics | Patients (n) | Percentage (%) |
| Age (years) | ||
| <60 | 58 | 35.60% |
| ≥60 | 105 | 64.40% |
| Sex | ||
| Male | 105 | 64.40% |
| Female | 58 | 35.60% |
| T status | ||
| T0-T2 | 57 | 35% |
| T3-T4 | 106 | 65% |
| (B) Mesenteric Vein Blood (MVB) | ||
| Characteristics | Patients (n) | Percentage (%) |
| Age (years) | ||
| <60 | 52 | 36.90% |
| ≥60 | 89 | 63.10% |
| Sex | Sex | |
| Male | 92 | 65.20% |
| Female | 49 | 34.80% |
| T status | ||
| T0–T2 | 50 | 35.50% |
| T3–T4 | 91 | 64.50% |
| (C) All patients | ||
| Characteristics | Patients (n) | Percentage (%) |
| Lymph Node Metastasis | ||
| Negative | 101 | 60.80% |
| Positive | 65 | 39.10% |
| Preoperative Serum CEA | ||
| ≤5 ng/mL | 55 | 33.10% |
| >5 ng/mL | 111 | 66.90% |
| Preoperative Serum CA19-9 | ||
| <37 U/mL | 143 | 86.10% |
| ≥37 U/mL | 23 | 13.90% |
TNM: tumor, nodes, metastasis classification.