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Model and calibration? #5

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mortlind opened this issue Oct 31, 2015 · 1 comment
Open

Model and calibration? #5

mortlind opened this issue Oct 31, 2015 · 1 comment

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@mortlind
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Hi compbrain,

I was really happy to find this software and it works fine with my G4. Thanks for that!

However, I do not find any hint as to the correlation between EGV_DATA and actual mmol/l data. It looks similar, but there must be a factor and an offset involved in getting the mmol/l data. I suppose that EGV_DATA already have had the calibration in the device applied from the SENSOR_DATA? Then, when I read something like 79 in the latest EGV_DATA record it reads 4.4 mmol/l in the display. The time for the EGV_DATA record seems correct. Could you, or someone else, please clarify this to me, or point me to some reading I can do?

Best regards,
Morten Lind.

@mortlind
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I guess that the EGV_DATA glucose is given in mg/dl. Ca anyone confirm this? And I find a correspondence of 80 mg/dl to 4.4 mmol/l in the manual of the Dexcom G4. Using the 4.4 / 80 factor in the EGV_DATA from the device seems to correspond well with the readings.

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