ArticleJournal of blood medicine2020
Phenotype Frequencies of Major Blood Group Systems (Rh, Kell, Kidd, Duffy, MNS, P, Lewis, and Lutheran) Among Blood Donors in the Eastern Region of Saudi Arabia.
Article in Journal of blood medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
30 citing papers in PubMed, 47 citations in OpenAlex.
- Frequency of ABO, Rh Subtypes, and Kell Antigen Among Blood Donors at Riyadh Regional Blood Bank: A Retrospective Cross-Sectional Study.Journal of clinical medicine · 2026Article
- Adaptive admixture at ACKR1, the Duffy blood group locus, may have shaped Plasmodium vivax prevalence in Oman.American journal of human genetics · 2026Article
- Characterisation of RHD and RHCE variations in blood donors from Jazan Province, Southwestern Saudi Arabia.Transfusion medicine (Oxford, England) · 2026Article
- Distribution of extended red blood cell phenotypes among blood donors: experience from a low- and middle-income country.Scientific reports · 2026Article
- Amplicon-based DNA sequencing to characterize Duffy antigen polymorphisms and analysis of Duffy blood system and glucose-6-phosphate dehydrogenase deficiency in Mauritania.PLoS neglected tropical diseases · 2025Article
- Characterization of blood group variants in an Omani population by comparison of whole genome sequencing and serology.Transfusion · 2025Article
- The MNS blood group system in Tunisian blood donors: common and rare alleles.Molecular biology reports · 2025Article
- Phenotypic Identification of Blood Groups in Blood Donors: A Peruvian Multicenter Analysis.Journal of blood medicine · 2025Article
- The Distributions of Duffy Antigens and Phenotypes Among Blood Donors in King Abdulaziz Medical City-Western Region, Saudi Arabia: A Cross-Sectional Study.International journal of general medicine · 2025Article
- Characterization of Blood Group Variants in an Omani Population by Comparison of Whole Genome Sequencing and Serology.bioRxiv : the preprint server for biology · 2024Article
- The Distribution Patterns of Rhesus (Rh) Antigens.Cureus · 2024Article
- The Incidences of KEL Blood Group Antigens and Phenotypes in Southwestern Saudi Arabia.International journal of general medicine · 2024Article
- Review
- When the available blood supply mismatches the needs of the patient.Blood transfusion = Trasfusione del sangue · 2023Article
- Assessment of Minor Blood Group System Antigens and Their Phenotype among Voluntary Blood Donors in Ethiopian Blood and Tissue Bank Service, Addis Ababa, Ethiopia.Ethiopian journal of health sciences · 2023Article
- Identification of Lutheran Blood Groups and Genetic Variants withinTransfusion medicine and hemotherapy : offizielles Organ der Deutschen Gesellschaft fur Transfusionsmedizin und Immunhamatologie · 2023Article
- High-Throughput Next-Generation Sequencing of the Kidd Blood Group: Unexpected Antigen Expression Properties of Four Alleles and Detection of Novel Variants.Transfusion medicine and hemotherapy : offizielles Organ der Deutschen Gesellschaft fur Transfusionsmedizin und Immunhamatologie · 2023Article
- Frequency of Extended Red Cell Antigen Phenotype Among Patients of Hematological Diseases: A Single Center Study.Cureus · 2022Article
- Genotyping of Dombrock blood group system in blood donors from Saudi Arabia: A single-center study.Saudi medical journal · 2022Article
- The frequencies of Kidd blood group antigens and phenotypes among Saudi blood donors in Southwestern Saudi Arabia.Saudi journal of biological sciences · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionThe understanding of blood group phenotypes in Saudi Arabia is limited to the ABO and Rh blood groups. Data for the other major blood group phenotypes in different populations have been widely studied and used as a reference for identifying antigen-negative blood in hospital blood banks. Such information is crucial for facilitating the challenging task of providing antigen-negative blood for patients with multiple antibodies.
objectiveThe aim of this study was to determine the frequency of the major blood group phenotypes in the Eastern region of Saudi Arabia and compare them to phenotypes in other populations.
methodsA total of 100 volunteer Saudi donors were included in this study. Red blood cells from the donors were subjected to antigen typing of the major blood group systems (Rh, Kell, Kidd, Duffy, MNS, Lewis, Lutheran, and P) using the gel microtube technique.
resultsFrom the Rh blood group system, the e antigen was found in 97% of donors, followed by c at 86%. The Cellano (k) antigen of the Kell system was found in all donors, whereas the Kell (K) antigen was only found in 8 % of donors. The K+k- phenotype was not detected in our study. Unexpectedly, for the Duffy blood group system, the null phenotype Fy(a-b-) was found in 61% of donors. In the MNS blood group system, M+N-S+s+ was the most common phenotype at 24%.
conclusionThe frequency of blood group phenotypes in the Eastern region of Saudi Arabia differs from that in other populations because of the diverse ethnic backgrounds of those living in that region. The findings of this study can be used to establish a local donor registry to help provide antigen-negative blood for patients with unexpected antibodies or to create an in-house antibody identification panel to add to the commercial panel that would be useful for confirming antibody identification results.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.