High YY1 mRNA levels correlated with worse survival in HNSCC (OS and DSS), KIRC (OS, DSS), and KIRP (OS, PFS, DSS, and DFI) among other tumors (Figure 1E and Table S3; e.g., LUAD (DSS), PAAD (OS, PFS, DSS, and DFI), PCPG (OS and PFS), PCPG (DFI), SARC (DFI), STAD (DSS), and THCA (PFS and DFI)). Here, YY1 is linked to head and neck squamous cell carcinoma.