P-47 Distribution of ABO and Rh (D) blood group antigens among blood donors in Guyana
Author(s):
R Kurup, P Lewis, A Joseph, L Ward, A Anderson, M McKenzie, C Boston, R Gordon
Year of Presentation:
2024
Objective: This study aimed to examine the distribution of ABO and Rh-D blood groups among blood donors in Guyana.
Methods: This was a retrospective observational study carried out in the National Blood Transfusion Services in Guyana from January 2019 to December 2022. ABO and Rh (D) blood grouping of all the blood donors was carried out by tube agglutination method.
Results: Out of a total of 19785 donors, Two thousand twenty-three (2023) were deferred donors (individuals not eligible to donate blood), 12632 (63.9%) were male donors and 7153 (36.2%) were female donors. The percentage and number of donors in the regions of Guyana were as follows: 1.6% (320) for Region 1; 4.3% (852) for Region 2; 6% (1193) for Region 3; 67.4% (13,332) for Region 4; 0.2% (32) for Region 5; 17.1% (3381) for Region 6; 0.4% (80) for Region 7; 0.6% (120) for Region 9 and 2.4% (470) for Region 10. Blood group O was the most common blood type 48.1% (9508), followed by blood group B with 20.0% (3958), blood group A with 17.8% (3528), and blood group AB with 3.9% (768). Rh (D) positive donor distributions were Group A 95.5 % (3369), Group B 95.7 % (3786), Group O 93.8% (8923), and Group AB 93.6% (719) respectively. The majority of the blood donors were from Region 4 and the least donors were from Region 7.
Conclusion: Although there was a sharp decline in the number of donors from 2019 to 2022, specifically blood group A had a sharp decline. The order of prevalence of the blood group from most to least prevalent was O>B>A>AB except for regions 1 & 3.