Table 1. Clinicopathological characteristics of patients with colorectal cancer liver metastases according to immune score PT.
| Characteristics | Low immune score PT, n (%) | High immune score PT, n (%) | P value |
|---|---|---|---|
| Age | |||
| Median (range, years) | 54.50 (44.25–62.00) | 53.00 (44.00–64.00) | – |
| ≤65 years | 67 (83.8) | 40 (78.4) | 0.443 |
| >65 years | 13 (16.3) | 11 (21.6) | |
| Gender | |||
| Male | 50 (62.5) | 37 (72.5) | 0.235 |
| Female | 30 (37.5) | 14 (27.5) | |
| BMI | |||
| Median (range, kg/m2) | 22.76 (20.03–24.44) | 22.67 (20.79–25.39) | – |
| <24 kg/m2 | 51 (63.8) | 33 (64.7) | 0.911 |
| ≥24 kg/m2 | 29 (36.3) | 18 (35.3) | |
| Primary tumor location | |||
| Right-sided | 19 (23.8) | 11 (21.6) | 0.772 |
| Left-sided | 61 (76.3) | 40 (78.4) | |
| Histological subtype | |||
| Non-mucinous | 75 (93.8) | 50 (98.0) | 0.404b |
| Mucinous | 5 (6.3) | 1 (2.0) | |
| Primary tumor gradea | |||
| G1–2 | 23 (28.8) | 11 (21.6) | 0.361 |
| G3 | 57 (71.3) | 40 (78.4) | |
| T-stagea | |||
| pT1–3 | 47 (58.8) | 25 (49.0) | 0.275 |
| pT4 | 33 (41.3) | 26 (51.0) | |
| N-stagea | |||
| pN0 | 28 (35.0) | 23 (45.1) | 0.248 |
| pN1–2 | 52 (65.0) | 28 (54.9) | |
| Synchronous liver metastasis | |||
| Present | 69 (86.3) | 45 (88.2) | 0.742 |
| Absent | 11 (13.8) | 6 (11.8) | |
| Preoperative chemotherapy | |||
| Yes | 22 (27.5) | 31 (60.8) | <0.001c |
| No | 58 (72.5) | 20 (39.2) |
c, according to Union for International Cancer Control (UICC) staging system (7th edition); d, Fisher’s exact test; e, difference with a P value <0.05 was considered statistically significant and showed in bold. PT, primary tumor; BMI, body mass index.