Characterization of voluntary blood donors for blood group ABO and Rh attending a blood bank in the city of Tunja; Colombia

Objetivo: La frecuencia de grupo sanguíneo ABO y factor Rh es un factor importante en relación a las necesidades de los componentes sanguíneos en la población, la identificación un procedimiento de rutina en los bancos de sangre.Materiales y métodos: Se realizó un estudio retrospectivo de corte trasversal descriptivo, periodo entre enero a marzo de 2012 con datos proporcionados por la Fundación Hematológica Colombia provenientes de donantes voluntarios de sangre que asistieron a un punto fijo de recolección de sangre de la ciudad de Tunja – Colombia. Las variables analizadas fueron: edad, género, factor Rh y grupo sanguíneo ABO.Resultados: La población de estudio estuvo conformada por 1678 donantes voluntarios la edad promedio de 28,29 años, el 53,3 % (n=894), 62,9% de la población pertenece al grupo O, se encontró mayor proporción de Rh positivo frente al negativo (94,9 vs 5,1), el tipo de sangre O positivo es el 32% (n=532) del total de la población.Conclusiones: El grupo O y A son los que predominan en la población de estudio, comportamiento similar a loa reportado en la literatura, de igual manera el Rh negativo.Background: The frequency of ABO blood group and Rh factor is an important factorin relation to the needs of blood components in the population, identifying a routine inblood banks.Materials and methods: A retrospective, cross sectional, descriptive study was performed,period from January to March 2012 with data provided by the Foundation fromColombia Hematological volunteer blood donors who attended a fixed point of bloodcollection in the city of Tunja - Colombia. The variables analyzed were age, gender,and Rh blood group ABO.Results: The study population consisted of volunteer donors 1678 the average ageof 28,29 years, 53,3% (n = 894), 62,9% of the population belongs to the group O,there was higher proportion of positive versus negative Rh (94,9 vs 5,1 ), blood typeO positive, 32% (n = 532) of the total population.Discussion: The group O and A are predominant in the study population, similar tobehavior reported in the literature loa, just as the Rh negative.Background: The frequency of ABO blood group and Rh factor is an important factor in relation to the needs of blood components in the population, identifying a routine in blood banks.Materials and methods: A retrospective, cross sectional, descriptive study was performed, period from January to March 2012 with data provided by the Foundation from Colombia Hematological volunteer blood donors who attended a fixed point of blood collection in the city of Tunja - Colombia. The variables analyzed were age, gender, and Rh blood group ABO. Results: The study population consisted of volunteer donors 1678 the average age of 28,29 years, 53,3% (n = 894), 62,9% of the population belongs to the group O, there was higher proportion of positive versus negative Rh (94,9 vs 5,1 ), blood typeO positive, 32% (n = 532) of the total population. Discussion: The group O and A are predominant in the study population, similar to behavior reported in the literature loa, just as the Rh negative