# How Glycemic Variability impacts HbA1c

**URL:** <https://forum.fudiabetes.org/t/how-glycemic-variability-impacts-hba1c/5223>\
**Category:** Treatment\
**Tags:** a1c, glycemic-variability\
**Created:** [October 15, 2018, 11:14pm UTC](https://forum.fudiabetes.org/t/how-glycemic-variability-impacts-hba1c/5223 "2018-10-15T23:14:09Z")\
**Posts on this page:** 1\
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**Author:** ![Jen](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/jen/32/4777_2.png) [@Jen](https://forum.fudiabetes.org/u/Jen)\
**Post date:** [October 15, 2018, 12:54am UTC](https://forum.fudiabetes.org/t/how-glycemic-variability-impacts-hba1c/5223/8 "2018-10-15T00:54:42Z")

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> [@Meta Study: Long-term Glycemic Variability and Risk of Adverse Outcomes](https://forum.fudiabetes.org/t/meta-study-long-term-glycemic-variability-and-risk-of-adverse-outcomes/5121/40):
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> Would anyone else like to share their tested A1c, 3 month estimated A1c, and SD info? Does your discrepancy between estimated and actual also conform to the table above?

Diasend doesn’t provide an estimated A1c. But my 90-day average is 7.6 mmol/L (136 mg/dl), 90-day standard deviation is 3.3 mmol/L (59 mg/dl), and my A1c taken a few days ago was 6.6%.

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