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Coffee Intake and Incidence of Erectile Dysfunction
David S Lopez1,2, Lydia Liu3,4, Eric B Rimm3,4,5
1Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, Texas.
American Journal of Epidemiology
|October 12, 2017
Summary
Coffee consumption does not appear to increase the risk of erectile dysfunction (ED). However, higher intake of decaffeinated coffee was linked to a greater risk of ED, particularly in current smokers.
Area of Science:
- Urology
- Epidemiology
- Nutritional Science
Background:
- Coffee's impact on chronic diseases is known, but its association with erectile dysfunction (ED) requires further investigation.
- Understanding coffee's role in urological health is crucial for public health recommendations.
Purpose of the Study:
- To examine the relationship between coffee consumption and the incidence of erectile dysfunction (ED) in a large cohort of men.
- To differentiate the effects of total, regular, and decaffeinated coffee intake on ED risk.
Main Methods:
- Prospective cohort study involving 21,403 men aged 40-75 years (Health Professionals Follow-Up Study).
- Self-reported coffee intake (total, regular, decaffeinated) assessed via food frequency questionnaires.
- Incident ED evaluated using questionnaire data from 2000, 2004, and 2008; analyzed with multivariable Cox proportional hazards models.
Main Results:
- No significant association was found between total or regular coffee intake and ED incidence.
- Higher decaffeinated coffee consumption (≥4 cups/day vs. 0 cups/day) was associated with a 37% increased risk of ED (HR = 1.37, 95% CI: 1.08, 1.73).
- This association with decaffeinated coffee was significant (P trend = 0.02) and more pronounced in current smokers (P trend = 0.005).
Conclusions:
- Long-term coffee intake, in general, is not associated with the risk of developing erectile dysfunction (ED).
- Decaffeinated coffee consumption may be linked to an elevated risk of ED, especially in specific subgroups like current smokers.
- Further research is warranted to elucidate the mechanisms behind the potential association between decaffeinated coffee and ED.
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