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. Author manuscript; available in PMC: 2023 Nov 1.
Published in final edited form as: Ann Surg Oncol. 2022 Jul 27;29(12):7579–7588. doi: 10.1245/s10434-022-12085-z

Table 2:

Cox proportional hazards regression model for unadjusted recurrence, liver recurrence, and extrahepatic recurrence-free survival in patients following complete resection of colorectal liver metastases with adjuvant hepatic artery infusion and systemic chemotherapy.

Any Recurrence Any Liver Recurrence Any Extrahepatic Recurrence
Univariable Analysis Multivariable Analysis Univariable Analysis Multivariable Analysis Univariable Analysis Multivariable Analysis
Variable HR (95% CI) P HR (95% CI) P HR (95% CI) P HR (95% CI) P HR (95% CI) P HR (95% CI) P
Age at resection 0.98 (0.97-1.00) 0.12 0.97 (0.95-0.99) 0.007 0.97 (0.95-0.99) 0.005 0.98 (0.96-1.00) 0.043 0.98 (0.96-1.00) 0.07
Primary T-Stage T3-T4 2.29 (1.22-4.30) 0.010 2.01 (1.06-3.82) 0.032 1.97 (0.94-4.13) 0.07 2.22 (1.11-4.43) 0.024 2.06 (1.02-4.16) 0.044
T0-T2 1.00 1.00 1.00 1.00 1.00
Clinical Risk Score High (3-5) 1.66 (1.11-2.46) 0.013 1.45 (0.96-2.19) 0.08 1.73 (1.07-2.80) 0.026 1.39 (0.83-2.31) 0.21 1.79 (1.15-2.77) 0.010 1.70 (1.08-2.67) 0.021
Low (0-2) 1.00 1.00 1.00 1.00 1.00 1.00
Preoperative Chemotherapy Yes 1.51 (0.84-2.71) 0.16 1.48 (0.74-2.99) 0.20 1.23 (0.67-2.28) 0.50
No 1.00 1.00 1.00
Extent of Hepatectomy Major 0.80 (0.53-1.20) 0.28 0.58 (0.34-0.97) 0.038 0.51 (0.30-0.87) 0.014 0.93 (0.60-1.46) 0.76
Minor 1.00 1.00 1.00 1.00
Liver Margin R1 2.62 (1.31-5.24) 0.006 2.32 (1.13-4.74) 0.022 3.25 (1.47-7.19) 0.004 2.38 (1.03-5.49) 0.042 1.27 (0.51-3.13) 0.61
R0 1.00 1.00 1.00 1.00 1.00
Ablation at Hepatectomy Yes 1.80 (1.13-2.85) 0.013 1.44 (0.90-2.31) 0.13 2.28 (1.35-3.84) 0.002 2.04 (1.17-3.53) 0.012 1.39 (0.82-2.34) 0.22
No 1.00 1.00 1.00 1.00 1.00
RAS-TP53 Co-Altered 2.05 (1.34-3.13) <0.001 2.14 (1.38-3.31) <0.001 1.95 (1.17-3.24) 0.010 1.79 (1.06-3.01) 0.029 2.57 (1.64-4.04) <0.001 2.81 (1.78-4.44) <0.001
All others 1.00 1.00 1.00 1.00 1.00 1.00