Characteristics | PNI (−) | PNI (+) | p value |
---|---|---|---|
n = 37 (74.0%) | n = 13 (26.0%) | ||
Age (years) | |||
 < 70 | 15 (40.5) | 8 (61.5) | 0.215 |
 70 ≦ | 22 (59.5) | 5 (38.5) | |
Gender | |||
 Male | 9 (23.4) | 8 (61.5) | 0.021* |
 Female | 28 (75.7) | 5 (38.5) | |
Postoperative chemotherapy | |||
 No | 29 (78.4) | 2 (15.4) | < 0.001* |
 Yes | 8 (21.6) | 11 (84.6) | |
Postoperative complications | |||
 No | 36 (97.3) | 10 (76.9) | 0.049* |
 Yes | 1 (2.7) | 3 (23.1) | |
Size (mm) | |||
 < 35 | 20 (54.1) | 6 (46.2) | 0.751 |
 35 ≦ | 17 (45.9) | 7 (53.8) | |
Circumferential tumor location | |||
 Hepatic side | 21 (56.8) | 11 (84.6) | 0.098 |
 No hepatic side | 16 (43.2) | 2 (15.4) | |
Tumor location | |||
 Proximal | 10 (27.0) | 10 (76.9) | 0.003* |
 Distal | 27 (73.0) | 3 (23.1) | |
Lymphatic invasion | |||
 No | 27 (73.0) | 3 (23.1) | 0.003* |
 Yes | 10 (27.0) | 10 (76.9) | |
Vascular invasion | |||
 No | 32 (86.5) | 3 (23.1) | < 0.001* |
 Yes | 5 (13.5) | 10 (76.9) | |
T category | |||
 T1 | 14 (37.8) | 0 (0.0) | 0.010* |
 T2, T3 | 23 (62.2) | 13 (100.0) | |
N category | |||
 N (-) | 29 (78.4) | 8 (61.5) | 0.281 |
 N (+) | 8 (21.6) | 5 (38.5) | |
Number of resected lymph nodes | 6.32 | 5.00 | 0.494 |
Lymph node ratio | 0.24 | 0.21 | 0.791 |