Evaluation of the main causes of clinical ineligibility for blood donation in Belo Horizonte: a retrospective analysis

Abstract

Background. Although rigorous donor selection is essential to blood safety, the deferral process can have negative impacts on the blood supply. Many deferred donors do not return, often due to negative feelings associated with being deferred. Deferral rates and the reasons for deferral vary across different blood centers. An understanding of these deferral rates and underlying reasons can help in designing more effective recruitment strategies and alleviate blood shortages, which are critical for the treatment of many patients. Objective. This study aimed to investigate the rates and reasons for donor deferral. Methods. A retrospective study (2019-2022) was conducted at a homonucleus. Donor deferrals were analyzed based on demographic characteristics. Results. Among 98827 candidates, 18974 (19,16%) were deferred. Temporary deferrals accounted for (88,8%), permanent for 8,20%, and withdrawals for 2,74%. The most prevalent causes were divided into the following groups: HIV/hepatitis-related risk factors (38,9%), general ineligibility (22,1%), medical conditions (14,6%), medication use (12,9%), and other infection risks (11,3%).