Seven-year mortality in heart failure patients with undiagnosed diabetes: an observational study
2011

Mortality in Heart Failure Patients with Undiagnosed Diabetes

Sample size: 400 publication Evidence: moderate

Author Information

Author(s): Juana A Flores-Le Roux, Josep Comin, Juan Pedro-Botet, David Benaiges, Jaume Puig-de Dou, Juan J Chillarón, Alberto Goday, Jordi Bruguera, Juan F Cano-Perez

Primary Institution: Hospital del Mar, Universitat Autónoma de Barcelona, Spain

Hypothesis

What is the impact of undiagnosed diabetes on mortality in heart failure patients?

Conclusion

Patients with undiagnosed diabetes have a similar increased mortality risk as those with clinical diabetes, despite having a lower cardiovascular risk profile.

Supporting Evidence

  • Undiagnosed diabetes was found in 16% of heart failure patients.
  • Patients with undiagnosed diabetes had a higher mortality risk compared to those without diabetes.
  • The study followed patients for an average of 7.5 years.

Takeaway

Many heart failure patients have diabetes that they don't know about, and this can lead to a higher chance of dying, just like those who know they have diabetes.

Methodology

The study observed 400 heart failure patients, categorizing them into groups based on diabetes diagnosis and following their mortality over 7 years.

Potential Biases

Potential biases due to retrospective data collection and lack of follow-up on diabetes treatment during the study period.

Limitations

The study's retrospective design limited the ability to gather complete data on diabetes duration and complications.

Participant Demographics

The study included 400 patients, with a mean age of 71.5 years, consisting of 203 men and 197 women.

Statistical Information

P-Value

p<0.001

Confidence Interval

95% CI: 1.17-2.46 for total mortality; 95% CI: 1.58-3.81 for cardiovascular mortality in undiagnosed diabetes group.

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1475-2840-10-39

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