Safety of Intravenous Iron in CKD Stage 3-5 Patients Not on Dialysis: A Retrospective Cohort Study.

Intravenous iron use in CKD 3-5 ND is generally safe. Higher hospitalization rates in patients with eGFR <30 mL/min are possibly associated with lower baseline hemoglobin, lower baseline eGFR, and higher comorbidity burden, and not related to iron infusion.