Association of HbA1c Values with Mortality and Cardiovascular Events in Diabetic Dialysis Patients. The INVOR Study and Review of the Literature
2011

Association of HbA1c Values with Mortality and Cardiovascular Events in Diabetic Dialysis Patients

Sample size: 78 publication 10 minutes Evidence: moderate

Author Information

Author(s): Gisela Sturm, Claudia Lamina, Emanuel Zitt, Karl Lhotta, Florian Haider, Ulrich Neyer, Florian Kronenberg

Primary Institution: Innsbruck Medical University

Hypothesis

Do HbA1c values affect mortality and cardiovascular events in diabetic patients undergoing dialysis?

Conclusion

The study found a significant inverse association between HbA1c levels and all-cause mortality, but no significant association with cardiovascular events.

Supporting Evidence

  • The study observed a decreased mortality risk with increasing HbA1c values.
  • 33 patients died during the follow-up period, with 51% of deaths attributed to cardiovascular disease.
  • Patients with HbA1c levels below 7% had higher rates of therapy withdrawal and heart failure.

Takeaway

This study looked at how blood sugar levels affect the health of diabetic patients on dialysis. It found that lower blood sugar levels were linked to higher death rates.

Methodology

A prospective cohort study followed 78 diabetic patients initiating dialysis for over seven years, using time-dependent Cox regression analysis.

Potential Biases

Potential bias due to the single-center design and the specific demographic of the study population.

Limitations

The study had a small sample size and may lack generalizability to other populations.

Participant Demographics

78 patients, 46 men and 32 women, median age 65.5 years, with 73 diagnosed with type 2 diabetes and 5 with type 1.

Statistical Information

P-Value

0.024

Confidence Interval

0.71 (0.51, 0.99)

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0020093

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