Research Article
Preoperative Neutrophil-to-Lymphocyte Ratio, Platelet-to-Lymphocyte Ratio, and CEA as the Potential Prognostic Biomarkers for Colorectal Cancer
Table 1
Survival analysis using the Kaplan–Meier and compared by the log-rank test.
| Characteristics | N | Mean OS (months) | X2 | value |
| Age | <65 Y | 87 | 51.5 | 8.3 | 0.004 | ≥65 Y | 243 | 41.7 |
| Sex | Male | 198 | 41 | 6.7 | 0.01 | Female | 132 | 48.6 |
| Primary site | Rectum | 129 | 47.4 | 2.1 | 0.144 | Colon | 201 | 42.3 |
| Tumor size | <5 cm | 205 | 44.1 | 0.1 | 0.829 | 5+ cm | 125 | 45 |
| T stage | T0–T2 | 68 | 48.7 | 2.3 | 0.138 | T3–T4 | 262 | 43.2 |
| N stage | N0 | 185 | 48.5 | 8.9 | 0.003 | N1–N3 | 145 | 38.7 |
| M stage | M0 | 275 | 46.9 | 17.9 | <0.001 | M1 | 55 | 30.7 |
| Stage | I-II | 163 | 49.2 | 9.1 | 0.003 | III-IV | 167 | 39.2 |
| NLR | <3.03 (low) | 176 | 49.7 | 16.6 | <0.001 | ≥3.03 (high) | 154 | 37.4 |
| PLR | <149.73 (low) | 148 | 49.2 | 9.7 | 0.002 | ≥149.73 (high) | 182 | 40.2 |
| CEA (ng/mL) | <13.4 (low) | 244 | 47.9 | 17.9 | <0.001 | ≥13.4 (high) | 86 | 33.3 |
| CEA + NLR | Low | 141 | 52.6 | 24.4 | <0.001 | High | 189 | 37.4 |
| CEA + PLR | Low | 117 | 51.6 | 13.4 | <0.001 | High | 213 | 40.4 |
| NLR + PLR | Low | 116 | 52 | 15.5 | <0.001 | High | 214 | 40 |
| CEA + NLR + PLR | Low | 94 | 54.7 | 19.3 | <0.001 | High | 236 | 40.2 |
| BMI | <21.7 (low) | 155 | 35.1 | 35.5 | <0.001 | ≥21.7 (high) | 175 | 52.3 |
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NLR, neutrophil-to-lymphocyte ratio; PLR, platelet-to-lymphocyte ratio; CEA, carcinoembryonic antigen; BMI, body mass index.
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