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Revista argentina de cirugía
versión impresa ISSN 2250-639Xversión On-line ISSN 2250-639X
Resumen
GONZALEZ GONZALEZ, Daniel; WAGNER, Gabriela; TELLES, Leandro y RUSO, Luis. Comparison of the prevalence of blood group A in gastric cancer patients and blood donors. Rev. argent. cir. [online]. 2022, vol.114, n.2, pp.117-123. ISSN 2250-639X. http://dx.doi.org/10.25132/raac.v114.n2.1668.
Background:
Gastric cancer has high incidence and mortality in Uruguay. Blood group A has been considered a risk factor for gastric cancer and has high prevalence in this disease.
Objective:
The aim of this study is to compare the percentage of blood group A in patients with gastric cancer and in blood donors in Uruguay.
Material and methods:
We conducted an observational and retrospective study. We used the sample size calculation for comparing proportions with a confidence of 95% and 80% power. The number calculated was 149 for each group. We included all the patients from Hospital Maciel and Cooperativa Médica de Florida who met the admission criteria and a population of blood donors from both institutions. The chi-square test was used and a p value < 0.05 was considered statistically significant.
Results:
A total of 153 patients and blood donors were included in each group. Blood group A was less common in gastric cancer patients than in blood donors (35.9% vs. 36.6%). The difference was not statistically significant between the groups studied.
Conclusions:
We did not find any significant difference in the percentage of blood group A in the groups compared.
Palabras clave : Stomach neoplasms; Blood donors; A blood group.