Prevalence of autoimmune liver disease by latitude. Top row: Plots denote crude prevalence at the end of 2015 of (A) primary biliary cholangitis (PBC), (B) primary sclerosing cholangitis (PSC), and (C) autoimmune hepatitis (AIH). (D–F) Bottom row: Plots denote adjusted incidence after adjustment for sex, age, smoking status, and Townsend30 deprivation quintile. For PBC, 5.89 (2.51–9.27) per 100,000 per degree (r2 = 0.752; P = .005); PSC, 0.62 (-0.18 to 1.41) per 100,000 per degree (r2 = 0.375; P = .107); and AIH, 1.92 (0.150–3.69) per 100,000 per degree (r2 = 0.540; P = .038).