Global Blood Type Distribution Analysis: A Comparative Study

Authors: Nagaraju Latha Devi
DIN
IMJH-SVU-JAN-2025-11
Abstract

This study presents a comprehensive analysis of global blood type distribution across 126 countries, with an emphasis on identifying patterns and anomalies in blood group prevalence. Utilizing a dataset consisting of ABO and Rh factor percentages by country, we conduct exploratory data analysis using Python to uncover demographic insights and potential medical implications. The findings provide valuable references for healthcare planning, blood bank logistics, and genetic studies on population diversity.

Keywords
Global Blood Type Distribution ABO and Rh Factor Analysis Comparative Demographic Study Exploratory Data Analysis (EDA) Population Health Patterns
Introduction

Blood types, defined primarily by the ABO and Rh systems, are critical in transfusion medicine, organ transplantation, and population genetics. The distribution of blood types varies significantly across populations due to evolutionary, geographic, and historical factors. Understanding these patterns not only enhances clinical preparedness but also supports anthropological and epidemiological research.

Conclusion

This analysis offers a detailed view of global blood type distributions, revealing patterns shaped by genetic, evolutionary, and geographic factors. O+ remains the most prevalent, while AB- is the rarest. These insights are crucial for: 

Blood bank management 

National health policy 

Global humanitarian planning 

Future work could incorporate:

 Geographical plotting by continent 

Time-based trends if historical data is added 

Correlation with disease prevalence and genetic ancestry

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