Associations of Variables with Liver Progression-free Survival
No. of patients ( |
Liver progression-free survival |
|||||||
---|---|---|---|---|---|---|---|---|
1-year (%) | 3-year (%) | 5-year (%) | 7-year (%) | Median | 95% CI | |||
Technique | 0.122 | |||||||
MWA | 33 | 75.3 | 44.8 | 35.9 | 23.1 | 41.22 (5.60) | 30.25–52.20 | |
RFA | 31 | 79.3 | 60.3 | 50.3 | 50.3 | 53.43 (6.28) | 41.11–65.74 | |
K-ras oncogene | < 0.001 | |||||||
Wild-type | 34 | 81.4 | 71.2 | 71.2 | 64.7 | 62.24 (5.86) | 50.75–73.73 | |
Mutated | 30 | 79.7 | 32.7 | 14.0 | 9.4 | 31.90 (4.47) | 23.13–40.67 | |
Prior systemic chemotherapy |
0.665 | |||||||
No | 39 | 81.5 | 52.8 | 45.7 | 37.2 | 48.47 (5.35) | 37.96–58.97 | |
Yes | 25 | 70.8 | 51.0 | 37.2 | 37.2 | 45.02 (7.11) | 31.07–58.97 | |
Colorectal localization | 0.144 | |||||||
Right | 16 | 68.8 | 40.1 | 30.1 | 20.1 | 35.80 (6.68) | 22.70–48.90 | |
Left/rectum | 48 | 80.3 | 56.4 | 47.3 | 43.4 | 50.36 (5.00) | 40.56–60.17 | |
Lung metastasis | < 0.001 | |||||||
No | 49 | 85.0 | 61.0 | 52.2 | 45.2 | 54.04 (4.74) | 44.73–63.34 | |
Yes | 15 | 53.3 | 25.0 | 0.0 | 0.0 | 21.96 (4.88) | 12.39–31.53 |
CI, confidence interval; MWA, microwave ablation; RFA, radiofrequency ablation.
*Prior systemic chemotherapy choice was neoadjuvant in all patients (see Table 1).
†Median survival is shown on a monthly basis, while annual survival is shown as a percentage. Values in parentheses are standard error values.
‡Log-rank comparison between variables.