FTH1 expression was significantly associated with OS in eight cancer types (Figure 2D): BLCA (HR 1.23, 95% CI 1.03–1.46, P = 0.2 × 10−1), KIRP (HR 1.77, 95% CI 1.21–2.6, P = 3.2 × 10−3), LIHC (HR 1.44, 95% CI 1.16–1.78, P = 8.8 × 10−4), CESC (HR 1.41, 95% CI 1.06–1.87, P = 1.7 × 10−2), HNSC (HR 1.33, 95% CI 1.13–1.56, P = 6.7 × 10−4), LAML (HR 1.45, 95% CI 1.14–1.84, P = 2.5 × 10−3), LGG (HR 2, 95% CI 1.4–2.87, P = 1.5 × 10−4), and KICH (HR 5.97, 95% CI 1.91–18.65, P = 2.1 × 10−3). Here, FTH1 is linked to cancer.