Endogenous testosterone and mortality due to all causes, cardiovascular disease, and cancer in men: European prospective investigation into cancer in Norfolk (EPIC-Norfolk) prospective population study

  • Luben R
  • Welch A
  • Day Kay-Tee Khaw N
 et al. 
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Abstract

Background—The relation between endogenous testosterone concentrations and health in men is controversial. Methods and Results—We examined the prospective relationship between endogenous testosterone concentrations and mortality due to all causes, cardiovascular disease, and cancer in a nested case-control study based on 11 606 men aged 40 to 79 years surveyed in 1993 to 1997 and followed up to 2003. Among those without prevalent cancer or cardiovascular disease, 825 men who subsequently died were compared with a control group of 1489 men still alive, matched for age and date of baseline visit. Endogenous testosterone concentrations at baseline were inversely related to mortality due to all causes (825 deaths), cardiovascular disease (369 deaths), and cancer (304 deaths). Odds ratios (95% confidence intervals) for mortality for increasing quartiles of endogenous testosterone compared with the lowest quartile were 0.75 (0.55 to 1.00), 0.62 (0.45 to 0.84), and 0.59 (0.42 to 0.85), respectively (PϽ0.001 for trend after adjustment for age, date of visit, body mass index, systolic blood pressure, blood cholesterol, cigarette smoking, diabetes mellitus, alcohol intake, physical activity, social class, education, dehydroepiandrosterone sulfate, androstanediol glucuronide, and sex hormone binding globulin). An increase of 6 nmol/L serum testosterone (Ϸ1 SD) was associated with a 0.81 (95% confidence interval 0.71 to 0.92, PϽ0.01) multivariable-adjusted odds ratio for mortality. Inverse relationships were also observed for deaths due to cardiovascular causes and cancer and after the exclusion of deaths that occurred in the first 2 years. Conclusions—In men, endogenous testosterone concentrations are inversely related to mortality due to cardiovascular disease and all causes. Low testosterone may be a predictive marker for those at high risk of cardiovascular disease. (Circulation. 2007;116:2694-2701.) Key Words: testosterone Ⅲ hormones Ⅲ epidemiology Ⅲ men Ⅲ mortality T he role of testosterone in men's health is still controver-sial. High doses of exogenous testosterone or other anabolic steroids have been associated with adverse health effects, including sudden cardiac death and liver disease. 1– 4 Nevertheless, hypogonadism in men is also adversely asso-ciated with health, and the use of lower doses of exogenous testosterone is increasingly widespread because of the belief that supplementation has benefits for well-being. 5,6 Although a recent trial in 87 elderly men reported no significant effect of low-dose testosterone replacement on body composition, physical performance, or quality of life, that study did not address the relationship with clinical event end points, and the authors concluded that additional long-term studies of testos-terone were warranted. 7,8 Editorial p 2658 Clinical Perspective p 2701

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Authors

  • Robert Luben

  • Ailsa Welch

  • Nicholas Day Kay-Tee Khaw

  • Mitch Dowsett

  • Elizabeth Folkerd

  • Sheila Bingham

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