As shown in Figure 5, compared with the pooled HR for all cancers, GAS5 displayed a stronger correlation with poor OS in the subgroups of reproductive system tumors (HR = 2.80, 95% CI: 1.56–5.02, P < 0.001), and in HCC (HR = 2.77, 95% CI: 1.57–4.90, P < 0.001). Here, GAS5 is linked to hepatocellular carcinoma.