Blood group antigens in Puerto Rican population
Barquet-Chediak, A.; Santiago-Borrero, P.J.; Pérez Ayala, J.
Boletin de la Asociacion Medica de Puerto Rico 74(9): 252-254
1982
ISSN/ISBN: 0004-4849 PMID: 6963912 Document Number: 700915
The main red blood cell antigens were studied in 23,364 Puerto Rican persons of all ages between 1977 and 1982. The majority of these persons lived in the metropolitan San Juan area and in nearby towns, but almost all towns of Puerto Rico were represented in the sample. Among the persons studied, 53.8% were blood group 0; 33.8% were group A; 10.6% group B; and 1.9% group AB; and 91.3% were positive for type Rh° or D antigen. The prevalence of other blood antigens in a group of 3,898 individuals referred for paternity studies was: rh' or C, 60.0%; rh" or E, 30.0%; hr' or c, 85.6%; hr" or e, 92.9%; M, 78.4%; N, 74.1%; S, 38.1%; k, 100.0%; K, 6.0%; Duff 50.1%. The frequency of group O and type Rh° or D is higher than that reported in USA caucasians (53.8% and 91.3%, versus 45.0% and 85.0%, respectively). Furthermore, among Puerto Rican people the frequency of antigens A and AB; and C, S, K. and Fya are significantly lower than in Caucasian people in U.S.A. The frequencies of these genes among Puerto Rican people follow the same general pattern reported for these red cell antigens in Negroes. We may infer that this finding is due to a strong admixture of blood of these two races in the Puerto Rican population.
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