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J Diabetes Investig. 2012 Dec 20;3(6):492-7. doi: 10.1111/j.2040-1124.2012.00224.x.

Introduction of glycated albumin measurement for all blood donors and the prevalence of a high glycated albumin level in Japan.

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Japanese Red Cross Society Central Blood Institute, Tokyo.
Japanese Red Cross Osaka South Blood Center, Osaka.
Japanese Red Cross Fukui Blood Center, Fukui.
Japanese Red Cross Ishikawa Blood Center, Ishikawa, Japan.


(J Diabetes Invest, doi: 10.1111/j.2040-1124.2012.00224.x, 2012) Aims/Introduction:  The Japanese Red Cross Society introduced measurement of glycated albumin (GA) for all blood donors as a glycemic control marker. The GA levels were examined by sex and age.


  GA was measured in 3.14 million blood donors who donated between April 2009 and March 2010. For the reference range for GA, values that were three times the reference range for glycated hemoglobin (Japan Diabetes Society value) were used. All donors were notified of their GA levels. For repeat donors, a comparison was made between the GA levels at the first and second donations to verify the GA change after notification.


  The mean GA was significantly lower in males than in females in donors aged <60 years. The mean GAs of both sexes increased with age and reached the same level of 14.8% in their 60s. The percentage of donors with prediabetes/diabetes (GA ≥16.5%) was 2.8% in males and 2.3% in females. In the normal high group (15.6% ≤ GA < 16.5%), the mean GA at the second donation was lower by 0.20% than at the first donation. In 42.4% of these donors, GA decreased to the normal range at the second donation.


  Overall, 2.7% of otherwise healthy Japanese blood donors had a high GA (GA ≥16.5%). Donor blood screening for GA represents an effective measure to identify people at risk of diabetes. The decrease in the GA level after GA notification might indicate the potential usefulness of this strategy to improve glycemic control among people with high GA.


Glycated albumin; prediabetes mellitus; screening

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