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. 2010 Jan 26;55(4):350-6.
doi: 10.1016/j.jacc.2009.08.058.

Does erectile dysfunction contribute to cardiovascular disease risk prediction beyond the Framingham risk score?

Andre B Araujo  1 , Susan A Hall, Peter Ganz, Gretchen R Chiu, Raymond C Rosen, Varant Kupelian, Thomas G Travison, John B McKinlay
Affiliations

Does erectile dysfunction contribute to cardiovascular disease risk prediction beyond the Framingham risk score?

Andre B Araujo et al. J Am Coll Cardiol. .

Abstract

Objectives: This study was designed to determine whether erectile dysfunction (ED) predicts cardiovascular disease (CVD) beyond traditional risk factors.

Background: Both ED and CVD share pathophysiological mechanisms and often co-occur. It is unknown whether ED improves the prediction of CVD beyond traditional risk factors.

Methods: This was a prospective, population-based study of 1,709 men (of 3,258 eligible) age 40 to 70 years. The ED data were measured by self-report. Subjects were followed for CVD for an average follow-up of 11.7 years. The association between ED and CVD was examined using the Cox proportional hazards regression model. The discriminatory capability of ED was examined using C statistics. The reclassification of CVD risk associated with ED was assessed using a method that quantifies net reclassification improvement.

Results: Of the prospective population, 1,057 men with complete risk factor data who were free of CVD and diabetes at baseline were included. During follow-up, 261 new cases of CVD occurred. We found ED was associated with CVD incidence controlling for age (hazard ratio [HR]: 1.42, 95% confidence interval [CI]: 1.05 to 1.90), age and traditional CVD risk factors (HR: 1.41, 95% CI: 1.05 to 1.90), as well as age and Framingham risk score (HR: 1.40, 95% CI: 1.04 to 1.88). Despite these significant findings, ED did not significantly improve the prediction of CVD incidence beyond traditional risk factors.

Conclusions: Independent of established CVD risk factors, ED is significantly associated with increased CVD incidence. Nonetheless, ED does not improve the prediction of who will and will not develop CVD beyond that offered by traditional risk factors.

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Conflict of interest statement

Disclosure: Dr. Rosen reports that he serves as a consultant to Bayer-Schering, Eli Lilly, and Pfizer. Dr. Ganz has reports that he serves as a consultant to GlaxoSmithKline, Genentech, and Pfizer. Dr. Hall is a former employee of and former consultant to GlaxoSmithKline, but has no equity interest in GlaxoSmithKline. All other authors report no conflict of interest.

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