Fig. 4

HHT patients on iron therapy have increased ESS. Removing patients with history of GI bleeding, HHT patients not on iron therapy (n = 52) had a significantly lower ESS compared to HHT patients on iron therapy (n = 83). Iron therapy includes oral iron, IV iron or regular red blood cell transfusions. Values are median ± 5–95% interval, p-value determined by student’s t-test