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Message: <blockquote data-quote="Grazer" data-source="post: 221664" data-attributes="member: 31362"><p>Like all "calculators", they suffer from a bit of rounding. The standard formula most people accept is  actually HbA1c=(AvgePlasmaBG+4.29)/1.98. The problem I mentioned in earlier post re- diabetes.uk calculator was that it used the formula for "Whole blood", (I think it's being changed on the site shortly). If you use whole blood, you have to multiply the outcome by 1.12 to arrive at HbA1c, hence the apparent difference. Nearly all meters today are referenced to Plasma.</p></blockquote><p></p>

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