The forest plot of PFS analysis indicated that higher XRCC1 gene expression levels were relevant to worse PFS in ACC (P=0.0171), LGG (P <0.0001) and LUAD (P= 0.0268), whereas better PFS in BRCA(P=0.0429) (Figure 3A). Here, XRCC1 is linked to adrenal cortex carcinoma.