Abstract
Introduction:Hemoglobin S (HbS) is one of the most common inherited hematological disorders in humans. In Brazil, the sickle-cell disease (SCD) has significant epidemiological importance due to its prevalence and the morbidity-mortality and, therefore, it has been identified as a matter of public health.Objective:To determine the prevalence of HbS among Asian Brazilian, Afro Brazilian, and Euro Brazilian individuals of a blood bank in Curitiba.Material and method:The study was conducted from January 2008 to December 2009, and included 83,213 donors seen at the Instituto Paranaense de Hemoterapia e Hematologia.Results and discussion:The prevalence of HbS in the studied population was 0.9%, among them, 0% Asian Brazilians, 2.7% Afro Brazilians, and 0.7% Euro Brazilians. There was a positive association, statistically significant for the sickle cell trait in Afro-descendants, with odds ratio (OR) 4.01; confidence interval (CI) 3.42-4.72; and 95% confidence.Conclusion:This study showed higher rates of sickle cell trait in Afro Brazilians, which corroborates data published in other Brazilian regions and states.
Highlights
Hemoglobin S (HbS) is one of the most common inherited hematological disorders in humans
This study showed higher rates of sickle cell trait in Afro Brazilians, which corroborates data published in other Brazilian regions and states
The study was conducted in 83,213 blood donors at the Instituto Paranaense de Hemoterapia e Hematologia, from January 2008 to December 2009, which were submitted to blood collection by venipuncture for examinations for the diagnosis of sickle cell trait
Summary
Hemoglobin S (HbS) is one of the most common inherited hematological disorders in humans. In Brazil, the sickle-cell disease (SCD) has significant epidemiological importance due to its prevalence and the morbidity-mortality and, it has been identified as a matter of public health. Objective: To determine the prevalence of HbS among Asian Brazilian, Afro Brazilian, and Euro Brazilian individuals of a blood bank in Curitiba. Results and discussion: The prevalence of HbS in the studied population was 0.9%, among them, 0% Asian Brazilians, 2.7% Afro Brazilians, and 0.7% Euro Brazilians. There was a positive association, statistically significant for the sickle cell trait in Afro-descendants, with odds ratio (OR) 4.01; confidence interval (CI) 3.42-4.72; and 95% confidence. Conclusion: This study showed higher rates of sickle cell trait in Afro Brazilians, which corroborates data published in other Brazilian regions and states
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