Variable | Cutoff level | Number | Survival rates (%) | p-value | |
---|---|---|---|---|---|
 | 3 year | 5 year |  | ||
Age (year) | 0.012 | ||||
 | < 60 | 107 | 43.2 | 39.0 |  |
 | ≥ 60 | 85 | 25.5 | 15.3 |  |
Sex | 0.805 | ||||
 | Male | 66 | 34.9 | 24.4 |  |
 | Female | 126 | 35.9 | 29.7 |  |
Jaundice | < 0.001 | ||||
 | Present | 47 | 6.0 | 6.0 |  |
 | Absent | 145 | 42.9 | 36.0 |  |
Associated gallstone | 0.577 | ||||
 | Present | 106 | 35.3 | 25.8 |  |
 | Absent | 86 | 35.3 | 30.9 |  |
Curability | Â | Â | Â | Â | < 0.001 |
 | Curative | 163 | 40.4 | 32.1 |  |
 | Non-curative | 29 | 7.9 | 7.9 |  |
Tumor location | < 0.001 | ||||
Gallbladder neck | 54 | 12.7 | 9.5 | Â | |
Gallbladder body/fundus | 138 | 44.0 | 35.9 | Â | |
pT (TNM) | Â | Â | Â | Â | < 0.001 |
 | pT1 and 2 | 95 | 57.4 | 49.5 |  |
 | pT3 and 4 | 97 | 12.8 | 6.4 |  |
Lymph node metastasis | < 0.001 | ||||
 | Negative | 90 | 55.1 | 43.5 |  |
 | Positive | 102 | 17.5 | 14.6 |  |
Histologic differentiation | 0.154 | ||||
Well/Moderate | 161 | 36.0 | 30.8 | Â | |
 | Poor | 31 | 32.1 | 11.5 |  |
Hepatic invasion | < 0.001 | ||||
 | Present | 90 | 14.2 | 6.7 |  |
 | Absent | 102 | 53.1 | 45.9 |  |
CRAO | Â | Â | Â | Â | < 0.001 |
 | Present | 15 | 0.0 | 0.0 |  |
 | Absent | 177 | 36.0 | 28.7 |  |
Combined portal vein/hepatic artery resection | 0.041 | ||||
 | Present | 5 | 0.0 | 0.0 |  |
 | Absent | 187 | 37.8 | 30.1 |  |
Intraoperative blood infusion | 0.011 | ||||
 | Present | 44 | 16.6 | 5.5 |  |
 | Absent | 148 | 41.1 | 35.2 |  |
Adjuvant therapy | 0.782 | ||||
 | Yes | 28 | 31.6 | 13.2 |  |
 | No | 164 | 35.8 | 30.4 |  |
 | Overall | 192 | 35.3 | 28.1 |  |