Supplementary Material for: Association between antihistamine use and clinical outcomes in patients on maintenance hemodialysis

Introduction: H1-antihistamines are frequently used to treat pruritus in patients on dialysis, but their safety remains unclear. This study aimed to evaluate the effects of H1-antihistamine use on outcomes in patients undergoing maintenance hemodialysis (HD). Methods: This retrospective cohort study included adult patients undergoing HD identified through national HD quality assessment programs. Patients were grouped by H1-antihistamine use over 6 months: No prescription, Short (