FDX1 and cervical squamous cell carcinoma: The results of Cox model showed that the expression level of FDX1 was negatively associated with prognosis of CESC (p = 0.047) and KIRC (p < 0.001), as well as positively in HNSC (p = 0.023) and LGG (p < 0.001) (Figure 2A).