Abstract
In earlier papers the hypothesis was suggested—based upon investigations in blood doners, seniles, and athletes of 40 years of age and older—that individuals with blood group O are altogether a little more “fit” than those with group A [6–8]. The present paper summarizes additional evidence in patients of 75 years of age and older of the Surgical Clinic, in athletes and in soldiers on active service as well as those on universal conscription. The distribution in these groups compared with 694 healthy inhabitants of Sud-Niedersachsen (Control I: A: 44,8%; B: 10,2%; O:39,3%; AB:5,6%) and 81985 persons of Germany (Control II: A: 43,84%; B: 12,34%; O: 38,75%; AB: 5,05%). For statistical evaluation the method of Woolf is used. The results are described in Table 1 and 2. Our hypothesis of the “little more fitness” of blood group O is based on the following facts: 1. Many diseases are more frequent in individuals with blood group A than in individuals with blood group O. 2. The blood group O is predominant among blood doners (n=2000; A: 43,8%; B: 8,3%; O: 43,0%; AB: 4,9%). 3. In healthy seniles of 75 years of age and older the blood group O predominates, too (n=346; A: 34,7%; B: 12,7%; O: 49,1%; AB: 3,5%). 4. In 614 patients of 75 years of age and older in the Surgical Clinic blood group A predominates (A: 48,2%; B: 10,8%; O: 35,3%; AB: 5,8%). The reason for the predominance of blood group A in this sample is the presence, among other diseases, of 201 patients with different malignant neoplasms, 63 with fractures of the femoral neck, and 57 patients with adenoma of the prostate. 5. In a sample of active athletes of 40 years and older was found a predominance of blood group O (n=340; A: 39,4%; B: 11,6%; O: 46,8%; AB: 4,4%). 6. The blood group O also predominates in soldiers on active service (n=484; A: 37,4%; B: 11,6%; O: 45,2%; AB: 5,8%). In conclusion it seems to be likely that under presentday conditions of life selection favours O-individuals.
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