Fig. 2: Kaplan–Meier curves for OS in different patient groups.

A OS before PSM, comparing TACE and no TACE groups. B OS after PSM, comparing TACE and no TACE groups. C OS by HSP90α expression levels (low vs. high). D OS by treatment benefit (benefit vs. no benefit). OS, overall survival; PSM, propensity score matching; TACE, transarterial chemoembolization; HSP90α, heat shock protein 90 alpha.