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Diabetes Discussion
Type 1 Diabetes
HbA1C, and deviation from average BG
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<blockquote data-quote="AMBrennan" data-source="post: 232030" data-attributes="member: 37697"><p><a href="http://www.diabetes.co.uk/hba1c-to-blood-sugar-level-converter.html" target="_blank">Here</a>'s a calculator.</p><p></p><p>However, your meter average is (probably) not a very good predictor for your HbA1c because all measurements carry equal weight which is clearly not realistic - e.g. BG will be low all night (12h+) but the corresponding measurements (morning fasting BG) only accounts for 1/6 of the average.</p><p>That assumes the standard 6x tests per day; if you just test in fasting BG (which is what I do) in the morning and post-meal BG then the unweighed average will be even more biased; if you follow the recommendation of others and only test pre-meal then the average will still be biased.</p><p></p><p>Edit to add: At the end of the day, I think that morning fasting readings will be a much better indicator (assuming post-meal spikes are "small") than a simple average that is biased towards unusual observations. I wonder if there is statistical data to test that hypothesis?</p></blockquote><p></p>
[QUOTE="AMBrennan, post: 232030, member: 37697"] [url=http://www.diabetes.co.uk/hba1c-to-blood-sugar-level-converter.html]Here[/url]'s a calculator. However, your meter average is (probably) not a very good predictor for your HbA1c because all measurements carry equal weight which is clearly not realistic - e.g. BG will be low all night (12h+) but the corresponding measurements (morning fasting BG) only accounts for 1/6 of the average. That assumes the standard 6x tests per day; if you just test in fasting BG (which is what I do) in the morning and post-meal BG then the unweighed average will be even more biased; if you follow the recommendation of others and only test pre-meal then the average will still be biased. Edit to add: At the end of the day, I think that morning fasting readings will be a much better indicator (assuming post-meal spikes are "small") than a simple average that is biased towards unusual observations. I wonder if there is statistical data to test that hypothesis? [/QUOTE]
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Type 1 Diabetes
HbA1C, and deviation from average BG
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