What does this research mean for the field?

The blood donation landscape in Bulgaria in 2024 exhibits distinct regional patterns, demographic trends, and data anomalies in ABO/Rh(D) frequencies and donation types that can inform national transfusion resource planning. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate national and regional distributions of ABO and Rh(D) blood types alongside donor demographic patterns to guide transfusion service resource planning.

August 30, 2026Interface FocusOpen Access

Blood donation landscape in Bulgaria: data analytics insights from 2024

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Authors

IUIvo Umlenski VAVassia Atanassova PVPeter Vassilev

Discussion

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Overview

Registry analysis uncovers blood type frequencies and donation demographics in nationwide transfusion centers, highlighting regional targets to optimize voluntary blood supply.

Key Points

To evaluate national and regional distributions of ABO and Rh(D) blood types alongside donor demographic patterns to guide transfusion service resource planning.
Retrieved and evaluated comprehensive 2024 donor records from the national information system serving transfusion haematology centres and departments across Bulgaria.
Stratified transfusion data using an atomic data-analysis approach by ABO blood group, Rh(D) antigen status, donor sex, age, geographic location, and donation type (voluntary versus family/replacement).
Determined nationwide and regional frequency patterns for ABO blood groups and Rh(D) antigen status in absolute counts and percentages.
Identified regional demographic variations and donor anomalies across age brackets, sex, and proportions of voluntary versus replacement donations.

Cite This Study

Umlenski et al. (2026) studied this question.

synapsesocial.com/papers/6a93f0e06c1a8fb52e79d5ff https://doi.org/10.1098/rsfs.2025.0092

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August 30, 2026Interface FocusOpen Access

Blood donation landscape in Bulgaria: data analytics insights from 2024

View Full Paper

Ask AI

Bookmark

Authors

IUIvo Umlenski VAVassia Atanassova PVPeter Vassilev

Discussion

Member takes

Overview

Registry analysis uncovers blood type frequencies and donation demographics in nationwide transfusion centers, highlighting regional targets to optimize voluntary blood supply.

Key Points

To evaluate national and regional distributions of ABO and Rh(D) blood types alongside donor demographic patterns to guide transfusion service resource planning.
Retrieved and evaluated comprehensive 2024 donor records from the national information system serving transfusion haematology centres and departments across Bulgaria.
Stratified transfusion data using an atomic data-analysis approach by ABO blood group, Rh(D) antigen status, donor sex, age, geographic location, and donation type (voluntary versus family/replacement).
Determined nationwide and regional frequency patterns for ABO blood groups and Rh(D) antigen status in absolute counts and percentages.
Identified regional demographic variations and donor anomalies across age brackets, sex, and proportions of voluntary versus replacement donations.

Cite This Study

Umlenski et al. (2026) studied this question.

synapsesocial.com/papers/6a93f0e06c1a8fb52e79d5ff https://doi.org/10.1098/rsfs.2025.0092

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