Average GB equals A1C

MEGriff1950
By MEGriff1950 Latest Reply 2012-02-02 00:10:40 -0600
Started 2012-01-31 14:47:26 -0600

I found this and thought I would share.

http://www.rajeun.net/HbA1c_glucose.html

Hb-A1c 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9
mg/dl 65 69 72 76 79 83 86 90 93 97
mmol/l 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4

Hb-A1c 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9
mg/dl 101 104 108 111 115 118 122 126 129 133
mmol/l 5.6 5.8 6.0 6.2 6.4 6.6 6.8 7.0 7.2 7.4

Hb-A1c 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9
mg/dl 136 140 143 147 151 154 158 161 165 168
mmol/l 7.6 7.8 8.0 8.2 8.4 8.6 8.8 9.0 9.2 9.4

Hb-A1c 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9
mg/dl 172 176 180 183 186 190 193 197 200 204
mmol/l 9.6 9.8 10.0 10.2 10.4 10.6 10.8 11.0 11.2 11.4

Hb-A1c 8.0 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9
mg/dl 207 211 215 218 222 225 229 232 236 240
mmol/l 11.6 11.8 12.0 12.2 12.4 12.6 12.8 13.0 13.2 13.4

Hb-A1c 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5
mg/dl 243 261 279 297 314 332 350 368 386 403
mmol/l 13.6 14.6 15.6 16.6 17.5 18.5 19.5 20.4 21.4 22.4

Color Key: Optimal Good High Bad Terrible Horrible Deathly Suicidal Suicidal Suicidal

This is an old table with a new twist: the color code expresses an opinion… MY OPINION. ("Green" is good, but "orange" and "red" and "bright red" and "blood red" are progressively worse!)

4.0% to 4.6% A+ (Excellent)
4.7% to 4.9% A (Excellent)
5.0% to 5.2% B (O.K.)
5.3% to 5.4% C (Bad)
5.5% to 5.9% C- (Bad)
6.0% to 6.4% D (Very Bad)
6.5% to 6.9% D- (Very Bad)
7.0% or more F (Failure)


7 replies

kdroberts
kdroberts 2012-01-31 17:06:24 -0600 Report

I wouldn't pay a whole lot of attention to charts that give you an A1c to BG average. Since A1c doesn't measure blood sugar and the part blood sugar plays into the result is different for each person, the estimates can be very wrong and usually discouraging.

annesmith
annesmith 2012-02-02 00:10:40 -0600 Report

This is very very true. When my A1c has been 5.9, my numbers were approx 55, 600, 200,86,51,500,90,81,444,200,61, 86, 81, 500, 400, 73,71, 80,100,186,182,600,330,58. I think it's great to have an average, but it means SO many different things I have discovered…ANNE

MEGriff1950
MEGriff1950 2012-01-31 17:42:18 -0600 Report

As this said average, it is just a guideline to help people get an estimate of how they might be doing. I did not say this chart was written in stone, only the 10 commandments are.

kdroberts
kdroberts 2012-01-31 17:49:53 -0600 Report

The problem with them is I've never seen anyone happy with where they are on the chart. They either predict their A1c using their meter average and are upset when their real A1c is higher or they compare their estimated BG to their meter average and are upset when the chart is higher than their meter, or they question their meters accuracy.

Nick1962
Nick1962 2012-02-01 11:20:30 -0600 Report

Part of that may be that (as I learned on this site just last week – thanks 10fluffy35 and others) your individual meter can be up to 20% off. I wasn’t even aware there was a control/calibration solution available for mine either. I’ve always used the other formula Toussier shows (Avg. BG + 77.3 / 35.6 = A1c) and could usually guess my A1c within .2%, so I guess my meter was pretty accurate. Of course I was (and still am) very anal retentive about my numbers. I liked the article, and thought it was good for newly dx’d people, or someone just interested in a ballpark number.

MEGriff1950
MEGriff1950 2012-02-01 12:19:18 -0600 Report

Thank you Nick. We are just diabetics here not professionals and I like to share articles that I find interesting especially ones that give some information. I thought the ratings for A1c Like 6.5 as very bad was a bit funny as some start at 14 and higher when they reach an A1C of 7 that is something to celebrate about.

Nick1962
Nick1962 2012-02-01 14:02:59 -0600 Report

Yeah, I know! I thought my starting A1c of 10 was very bad. I'd be breaking out the champagne if I was at 14 and made it to 7 too!