nearly significantP = .062
A nearly significant association was also found between YAP1 amplification and shorter OS (HR 2.78, P = .062), while a nonsignificant association was observed with PFS (HR 1.56, P = .11, Table 2 ). 3.4 The predictive role of YAP1 amplification in ESCC prognosis The prognostic effect of YAP1 CNV on LRFS, PFS, and OS was illustrated by Kaplan‐Meier curves (Figure 2 ).