Hemoglobin A1c: A reliable and accurate test for diabetes care? A prospective study in Mexico



Document title: Hemoglobin A1c: A reliable and accurate test for diabetes care? A prospective study in Mexico
Journal: Salud pública de México
Database: PERIÓDICA
System number: 000367382
ISSN: 0036-3634
Authors: 1
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Institutions: 1Universidad Autónoma de Nuevo León, Hospital Universitario Dr. José Eleuterio González, Monterrey, Nuevo León. México
Year:
Season: Sep-Oct
Volumen: 55
Number: 5
Pages: 462-468
Country: México
Language: Inglés
Document type: Artículo
Approach: Analítico, descriptivo
Spanish abstract Objetivo. Comparar el coeficiente de correlación de concordancia de HbA1c. Material y métodos. Estudio prospectivo en Monterrey, México, de abril a agosto de 2012 para evaluar la medición de la HbA1c. Participaron 38 individuos y se envió la muestra a 7 laboratorios locales y a uno internacional de referencia. Resultados. Se encontró pobre concordancia en 4 de 7 laboratorios, moderada en 2 y una concordancia significativa en uno. Los valores de HbA1c de tres laboratorios fluctuaron más de 1% del laboratorio de referencia en más de 30% de los casos y más de 2% en 10 a 20%. Conclusiones. La estandarización de la HbA1c no está concluida. Los médicos deberían tomar con cautela las recomendaciones de las guías para HbA1c en el diagnóstico o manejo de la diabetes hasta que se implementen los programas de estandarización
English abstract Objective. To compare the concordance correlation coefficient for HbA1c results in an in-field experience. Materials and methods. A prospective study in Monterrey, Mexico from April to August 2012 was conducted to evaluate the day-to-day clinical situation when measuring HbA1c. Blood samples from 38 consecutive patients were sent to seven local laboratories and one international reference laboratory. Results. Poor concordance was found in 4 out of 7 laboratories, moderate in 2 out of 7, and significant in just one. HbA1c values from three laboratories fluctuated more than 1% above or below the reference laboratory in more than 30% of cases, and more than 2% in 10%-20% of subjects. Conclusions. Standardized HbA1c measurement has not occurred worldwide. Physicians should be aware of this issue and be cautious of HbA1c guidelines on diabetes diagnosis or management until proper standardization programs are implemented
Disciplines: Medicina
Keyword: Diagnóstico,
Salud pública,
Metabolismo,
Diabetes,
Pruebas de laboratorio,
Hemoglobina A glucosilada
Keyword: Medicine,
Diagnosis,
Public health,
Metabolism,
Diabetes,
Laboratory tests,
Glycosylated hemoglobin A
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