Abstract
In a series of patients admitted to hospital for bleeding duodenal ulcer, the mean age at onset for patients belonging to blood group O was significantly lower than for those of blood group A. This raises the question of the significance of age and ABO blood group substances in increasing the liability to, or protecting against, bleeding.
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Selected References
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- AIRD I., BENTALL H. H., MEHIGAN J. A., ROBERTS J. A. F. The blood groups in relation to peptic ulceration and carcinoma of colon, rectum, breast, and bronchus; an association between the ABO groups and peptic ulceration. Br Med J. 1954 Aug 7;2(4883):315–321. doi: 10.1136/bmj.2.4883.315. [DOI] [PMC free article] [PubMed] [Google Scholar]
- DOLL R., SWYNNERTON B. F., NEWELL A. C. Observations on blood group distribution in peptic ulcer and gastric cancer. Gut. 1960 Mar;1:31–35. doi: 10.1136/gut.1.1.31. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Horwich L., Evans D. A., McConnell R. B., Donohoe W. T. ABO blood groups in gastric bleeding. Gut. 1966 Dec;7(6):680–685. doi: 10.1136/gut.7.6.680. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Langman M. J., Doll R. ABO blood group and secretor status in relation to clinical characteristics of peptic ulcers. Gut. 1965 Jun;6(3):270–273. doi: 10.1136/gut.6.3.270. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Merikas G., Christakopoulos P., Petropoulos E. Distribution of ABO blood groups in patients with ulcer disease. Its relationship to gastroduodenal bleeding. Am J Dig Dis. 1966 Oct;11(10):790–795. doi: 10.1007/BF02233839. [DOI] [PubMed] [Google Scholar]
