Role of Caffeine Intake on Erectile Dysfunction in US Men: Results from NHANES 2001-2004
Fig 1
Association of caffeine intake with erectile dysfunction in NHANES 2001–2004 (n = 3724).
†Adjusted for age, vigorous and moderate physical activity, smoking status, education, race/ethnicity, obesity (BMI ≥ 30 kg/m2), total water intake (plain and tap), total energy (continuous), alcohol (continuous). Error bars represent 95% confidence intervals. Ptrend = 0.19. *Erectile dysfunction was defined as “sometimes” or “never” able to maintain an erection for satisfactory sexual intercourse. ‡Approximately 170–375 mg/day of caffeine intake is equivalent to 2–3 cups of coffee.