A1CNow Experiences: How has yours been?
Since my next Lab test will not be until January and I was curious to see my current A1C, I got an A1CNow box. I just used up both tests that come in the box and this is what I got.
Test 1: 5.4
Test 2: 5.1
This means, according to the two tests, I must have been averaging about 100 mg/dL, which I know not to be true. NOT that I was expecting a huge A1C, but I was not expecting such a low value either, more like in the middle 6's.
I am wondering, how has your experience been with the A1CNow home A1c test?
Test 1: 5.4
Test 2: 5.1
This means, according to the two tests, I must have been averaging about 100 mg/dL, which I know not to be true. NOT that I was expecting a huge A1C, but I was not expecting such a low value either, more like in the middle 6's.
I am wondering, how has your experience been with the A1CNow home A1c test?
Replies to This Discussion
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Permalink Reply by Marie B on -
I think Kelly Rawlings did some comparisons of these a1c meters. What was your average on your bg meter, if I may be so rude to ask :)
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Permalink Reply by Manny Hernandez on -
It shows 124 as the average.
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Permalink Reply by Holger Schmeken on -
Is it the average of the CGMS or your meter average. I just ask because:
22:00 130 mg/dl (the day before)
08:00 190 mg/dL
12:00 90 mg/dL
18:00 100 mg/dL
22:00 90 mg/dL
METER AVERAGE 120 mg/dL
But the calculation is wrong because the 190 mg/dL in the morning is not represented properly in the calculation. What if you had this value for many hours? This is why I am not a friend of statistical data that is derived from single tests - it is often misleading. In the Glucosurfer project we allowed only statistical data that is based on linearized values. This means we connect every measurement with a linear function. So if you go to sleep with 130 and you wake up with 190 we will estimate every blood glucose value between these points for every minute. A mean value that is based on these numbers per minute will be much higher. It can be argued that the high value may be a result of a dawn reaction. Thus our method is over-estimating the situation. On the others hand is gives an early warning that something it not right here.
But since you are using an CGMS you will have all the numbers at hand, right?
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Permalink Reply by Manny Hernandez on
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Right, indeed. I haven't downloaded the most recent batch of readings from the CGMS, but the last time I did it (about a month ago) the average was definitely not 100 (more like 135-140).
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Permalink Reply by Holger Schmeken on
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I have done the calculation: the mean value of the values above with the linearized method would be 130 mg/dL. So the difference is 10 mg/dL.
With your CGMS values you have a very good indicator. A mean value of 135 mg/dL would lead to an A1c of 5.9 to 6.0 so the test kit seems a little bit to optimistic. On the other hand it is not a calibrated lab device so fluctuations must be expected - is the deviation mentioned in the description?
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Permalink Reply by Manny Hernandez on
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On their web site, they state:
"An individual A1CNow+ result may differ by as much as -1.0 %A1C to +0.8 %A1C from the true result."
So I guess, the results I got are within that range.
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Permalink Reply by boca raton on -
IF YOUR AIC IS REALLY AVERAGING 100 YOU BASICLY NOT REALLY A DIABETIC AT ALL
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Permalink Reply by Lizzie on -
unless you are having a lot of lows, like many type1s do, that are bringing down the average...
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Permalink Reply by MossDog on -
Or perhaps using a CGMS and insulin pump he was able to get this kind of control through MUCH hard work (without necessarily having a lot of lows).................You will see people all over these forums that have type 1 diabetes and get this kind or even better control.
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Permalink Reply by Natalie ._c- on -
Except if you are taking insulin to GET those values. An A1c in the 5's only indicates non-diabetes if you are taking no diabetes medications. And even then, it's not always true -- when I had my first signs of diabetes, I had an A1c of 4.8 -- I just had to wait until it became severe for my doc to believe that I had diabetes.
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Permalink Reply by Marie B on
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wow, I'd love to see 124. Maybe that 53 bg I had an hour ago may affect my average! oh, I was remembering Kelly's experience was she did the home tests the same day she went for the lab test. I think she shared it on Twitter. I just tweeted her to check out this discussion.
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Permalink Reply by Zoe on -
I don't know the brand name, but I know when I had my free A1C at Walgreen's recently, it was a home test. I found it a bit high for what I was anticipating based on my daily averages. On the other hand, as I posted in another thread, there are apparently three different A1C conversions. For the 6.5 I got, it would be either 130, 140 or 154. So I guess I don't have all that much faith in the meaning of the A1C in general.
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