Table 2 –
Multivariable Cox Regression |
Competing Risks Regression |
|||
---|---|---|---|---|
Hazard Ratio (95% CI) | p-value | Subhazard Ratio (95% CI) | p-value | |
Variables of Interest | ||||
Etiology (ref = HCV) | ||||
HBV | 1.10 (0.83 – 1.45) | 0.514 | 1.14 (0.86 – 1.51) | 0.359 |
EtOH | 0.65 (0.51 – 0.83) | 0.001* | 0.66 (0.52 – 0.85) | 0.001* |
NAFLD | 0.87 (0.69 – 1.09) | 0.223 | 0.88 (0.70 – 1.10) | 0.267 |
Autoimmune | 0.87 (0.58 – 1.31) | 0.510 | 0.90 (0.60 – 1.36) | 0.612 |
Other | 1.10 (0.92 – 1.32) | 0.294 | 1.13 (0.94 – 1.35) | 0.202 |
Max AFP Range (ng/mL; ref <100) | ||||
100 – 499 | 2.08 (1.77 – 2.45) | <0.001* | 2.02 (1.72 – 2.38) | <0.001* |
500 – 1000 | 2.34 (1.73 – 3.17) | <0.001* | 2.26 (1.65 – 3.08) | <0.001* |
>1000 | 4.06 (3.20 – 5.16) | <0.001* | 3.73 (2.92 – 4.77) | <0.001* |
Etiology-AFP Range Interaction | 0.006* | 0.015* | ||
Covariates | ||||
Age (per 5 years) | 1.05 (1.01 – 1.09) | 0.008* | 1.04 (1.00 – 1.08) | 0.041* |
Male Sex | 1.36 (1.18 – 1.55) | <0.001* | 1.36 (1.19 – 1.55) | <0.001* |
Race (ref = white) | ||||
Black | 0.77 (0.64 – 0.93) | 0.007* | 0.73 (0.60 – 0.88) | 0.001* |
Hispanic | 0.82 (0.70 – 0.96) | 0.015* | 0.82 (0.70 – 0.97) | 0.017* |
Asian | 0.84 (0.68 – 1.04) | 0.107 | 0.87 (0.70 – 1.08) | 0.211 |
Other | 0.69 (0.42 – 1.13) | 0.136 | 0.69 (0.41 – 1.15) | 0.152 |
Waiting Time (per 3 months) | 0.99 (0.98 – 1.00) | 0.013* | 0.99 (0.98 – 1.00) | 0.022* |
Largest Tumor at Transplant (cm) | 1.11 (1.08 – 1.13) | <0.001* | 1.11 (1.07 – 1.15) | <0.001* |
Within Milan Criteria at Transplant | 0.76 (0.60 – 0.96) | 0.020* | 0.77 (0.61 – 0.98) | 0.031* |
Locoregional Therapy Prior to Transplant | 1.27 (1.13 – 1.43) | <0.001* | 1.29 (1.14 – 1.44) | <0.001* |
Downstaged Prior to Transplant | 1.53 (1.09 – 2.14) | 0.014* | 1.53 (1.09 – 2.16) | 0.014* |
Statistically significant at the alpha = 0.05 level
MELD pre-transplant and number of viable tumors at transplant were not statistically significant at the alpha = 0.05 level and were removed from these models