The nature of the association between the ABO blood groups and disease is being investigated in the population of the State of Iowa.1 The demonstration of statistically significant associations between the ABO blood groups and several diseases suggests that the ABO blood groups may be a tool useful in investigation of genetic factors in still other disorders. This paper is a report of the findings in patients with psychoses and intracranial neoplasms (brain tumors).
Materials and Methods
The ABO blood types of the patients resident in Mount Pleasant and Independence Mental Health Institutes were determined by the research team, using a slide technique. The patient's blood type, diagnosis, and other relevant information abstracted from the patient's chart were recorded on punch cards. The diagnoses had previously been established by staff members of the Mental Health Institutes and were based upon the standard nomenclature of mental disorders recommended by the
BUCKWALTER JA, TURNER JH, GAMBER HH, RATERMAN L, SOPER RT, KNOWLER LA. Psychoses, Intracranial Neoplasms, and Genetics. AMA Arch NeurPsych. 1959;81(4):480–485. doi:10.1001/archneurpsyc.1959.02340160078012
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