Is Blood Type a Risk Factor for Gastric Cancer?

Observational Study

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Published

2020-08-31

How to Cite

Chauca Abad, V. E., & Baculima Tenesaca, J. M. (2020). Is Blood Type a Risk Factor for Gastric Cancer? Observational Study. Oncology Journal (Ecuador), 30(2), 123–132. https://doi.org/10.33821/482

Issue

Vol. 30 No. 2 (2020): August- November

Section

Original Articles

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Copyright (c) 2020 Valeria Estefanía Chauca Abad, José Mauricio Baculima Tenesaca

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This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

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Authors

DOI:

https://doi.org/10.33821/482

Keywords:

Stomach Neoplasms, Endoscopy, Gastrointestinal, ABO Blood-Group System, Risk Factors, Dyspepsia

Abstract

Introduction: There are studies that associate blood groups with the development of gastric cancer, establishing a relationship between individuals with blood group A and a predisposition to this neoplasia, however these reports could be biased by the population prevalence of the blood type of the region. The objective of this study is to establish the predicted relationship in an area with a high prevalence of blood type O.

Methods: This observational, analytical study was carried out in patients who underwent endoscopic stomach biopsy treated at the SOLCA Cuenca Cancer Institute in the period 2013 - 2018; the sampling is non-probability of all possible cases. For the analysis, group 1 (G1) is made up of patients with a Positive Biopsy for Gastric Cancer, group 2 with patients with a negative Biopsy for Gastric Cancer. Association analysis with Prevalence Ratio (PR) is performed.

Results: There were 433 cases of gastric cancer in G1 and 2606 negative cases for Gastric Cancer in G2. The prevalence of blood type “O” in G1 was 328/433 cases (75.75%) Vs. 1946/2606 cases (74.67%); the prevalence of blood type “A” in G1 was 71/433 cases (16.4%) Vs 485/2606 cases (18.61%) in G2; PR = 0.875 (95% CI 0.69 -1.11), P = 0.27.

Conclusions: No association between blood type and the presence of Gastric Cancer was demonstrated in this report.

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Author Biographies

Valeria Estefanía Chauca Abad, Clinical Laboratory Career; Faculty of Medical Sciences, University of Cuenca

Degree in Clinical Laboratory from the University of Cuenca. Email: valeria.chauca3006@hotmail.com https://orcid.org/0000-0001-5427-7927

José Mauricio Baculima Tenesaca, Clinical Laboratory Career; Faculty of Medical Sciences, University of Cuenca

Degree in Clinical Laboratory from the University of Cuenca, Higher Diploma in University didactics in Health Sciences from the University of Cuenca, Master in Microbiology Biomedical Mention from the University of Guayaquil. Email: mauricio.baculimat@gmail.com