BIRC5 and adrenal cortex carcinoma: For instance, in ACC, BIRC5 was associated with poor prognosis in PFI (HR = 4.66, 95% CI: 2.45–8.86, p < 0.001), OS (HR = 8.18, 95% CI: 3.72–17.99, p < 0.001), and DSS (HR = 8.30, 95% CI: 3.66–18.82, p < 0.001).