Another Fascinating U Shaped Mortality Curve

Medical News: Tight Glucose Control Raises Mortality Risk in Heart Failure – in Cardiovascular, CHF from MedPage Today

To look farther down the disease spectrum than the analysis in ACCORD, Dr. Aguilar’s group retrospectively examined outcomes for a national cohort of 5,815 ambulatory diabetic patients with established heart failure who were treated in ambulatory clinics at VA medical centers.

During two years of follow-up, mortality rates were:

* 25.0% in the bottom quintile with hemoglobin A1c levels of 6.4% or less.
* 23.0% in the group with A1c levels of 6.5% to 7.1%.
* 17.7% in the middle quintile with glycosylated hemoglobin levels above 7.1% but no more than 7.8%.
* 22.5% in the group with A1c levels of 7.9% to 9.0%.
* 23.2% in the top quartile with hemoglobin A1c levels above 9.0%.

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