Demographic and clinical features of enrolled patients.

SD indicates standard deviation; BMI, Body Mass Index; BP, Blood Pressure (mmHg ≈ 133.322 Pa); HR, Heart Rate; bpm, beats per minute; WC, Granulocytes; RC, red cells; Hb, Hemoglobin; LDH, Lactate Dehydrogenase; CWP, Chronic with Peaks; R, Recurrent; W, Weekly; M, Monthly; 3M, Every three months; H, Hours; 2-3D, two-three days.* There is no significant difference between the two groups (pain vs no pain) in terms of Age: (P = 0.59), BMI (P = 0.39), PNH clone in the granulocytes (P = 0.82), LDH serum levels (P = 0.59) and Hemoglobin (P = 0.82).Demographic and clinical features of enrolled patients.