Kaplan–Meier curves based on CK-19 expression level.

<p>(A) Early recurrence disease-free survival curves. (B) Disease-free survival curves. (C) Overall survival curves. (A) Early recurrence rate in CK-19⁺ patients was significantly higher than that in CK-19^– patients (log-rank test <i>P =</i> 0.000). Survival of CK-19⁺ patients was significantly shorter than that of CK-19^– patients (DFS: log-rank test <i>P =</i> 0.010; OS: log-rank test <i>P =</i> 0.001).