Blood group profile of Türkiye with regional and demographic differences: a 23-year retrospective study

This study provides a detailed profile of Türkiye's blood donors, filling a gap in national blood group data. The findings support optimizing transfusion services, improving blood supply management, and refining donor recruitment strategies. Regional and demographic disparities highlight the need for targeted awareness campaigns. Addressing sex imbalances and increasing participation from underrepresented groups can enhance sustainability. Additionally, these findings contribute valuable data for clinical applications, epidemiological studies, and future healthcare policy development.