FOXA1 and urothelial carcinoma: When analyzing patients with pure urothelial carcinomas (n = 43) and patients with histologic variants (n = 30) separately, we found an improved survival for patients with low FOXA1 expression and pure urothelial carcinomas but not histologic variants, which might be attributed to the low number of 30 patients and high heterogeneity of the histologic variants (Figure S1).