CONTEXT: Age-related reduction of serum testosterone may contribute to the signs and symptoms of aging, but previous studies report conflicting evidence about testosterone levels and male mortality. No large prospective cohort study has determined a possible association between serum estradiol and mortality in men. OBJECTIVE: The main objective was to examine the association between serum testosterone and estradiol and all-cause mortality in elderly men. DESIGN, SETTING, AND PARTICIPANTS: We used specific gas chromatography-mass spectrometry to analyze serum sex steroids at baseline in older men who participated in the prospective population-based MrOS Sweden cohort (n = 3014; mean age, 75 yr; range, 69-80 yr). MAIN OUTCOME MEASURE: All-cause mortality by serum testosterone and estradiol levels. RESULTS: During a mean follow-up period of 4.5 yr, 383 deaths occurred. In multivariate hazards regression models, low levels (within quartile 1 vs. quartiles 2-4) of both testosterone [hazard ratio (HR), 1.65; 95% confidence interval (CI), 1.29-2.12] and estradiol (HR, 1.54; 95% CI, 1.22-1.95) associated with mortality. A model including both hormones showed that both low testosterone (HR, 1.46; 95% CI, 1.11-1.92) and estradiol (HR, 1.33; 95% CI, 1.02-1.73) predicted mortality. Risk of death nearly doubled (HR, 1.96; 95% CI, 1.46-2.62) in subjects with low levels of both testosterone and estradiol compared with subjects within quartiles 2-4 of both hormones. CONCLUSIONS: Elderly men with low serum testosterone and estradiol have increased risk of mortality, and subjects with low values of both testosterone and estradiol have the highest risk of mortality.
CONTEXT: Age-related reduction of serum testosterone may contribute to the signs and symptoms of aging, but previous studies report conflicting evidence about testosterone levels and male mortality. No large prospective cohort study has determined a possible association between serum estradiol and mortality in men. OBJECTIVE: The main objective was to examine the association between serum testosterone and estradiol and all-cause mortality in elderly men. DESIGN, SETTING, AND PARTICIPANTS: We used specific gas chromatography-mass spectrometry to analyze serum sex steroids at baseline in older men who participated in the prospective population-based MrOS Sweden cohort (n = 3014; mean age, 75 yr; range, 69-80 yr). MAIN OUTCOME MEASURE: All-cause mortality by serum testosterone and estradiol levels. RESULTS: During a mean follow-up period of 4.5 yr, 383 deaths occurred. In multivariate hazards regression models, low levels (within quartile 1 vs. quartiles 2-4) of both testosterone [hazard ratio (HR), 1.65; 95% confidence interval (CI), 1.29-2.12] and estradiol (HR, 1.54; 95% CI, 1.22-1.95) associated with mortality. A model including both hormones showed that both low testosterone (HR, 1.46; 95% CI, 1.11-1.92) and estradiol (HR, 1.33; 95% CI, 1.02-1.73) predicted mortality. Risk of death nearly doubled (HR, 1.96; 95% CI, 1.46-2.62) in subjects with low levels of both testosterone and estradiol compared with subjects within quartiles 2-4 of both hormones. CONCLUSIONS: Elderly men with low serum testosterone and estradiol have increased risk of mortality, and subjects with low values of both testosterone and estradiol have the highest risk of mortality.
Authors: Kishore M Lakshman; Beth Kaplan; Thomas G Travison; Shehzad Basaria; Philip E Knapp; Atam B Singh; Michael P LaValley; Norman A Mazer; Shalender Bhasin Journal: J Clin Endocrinol Metab Date: 2010-06-09 Impact factor: 5.958
Authors: Andre B Araujo; Julia M Dixon; Elizabeth A Suarez; M Hassan Murad; Lin T Guey; Gary A Wittert Journal: J Clin Endocrinol Metab Date: 2011-08-03 Impact factor: 5.958
Authors: Robin Haring; Zhaoyang Teng; Vanessa Xanthakis; Andrea Coviello; Lisa Sullivan; Shalender Bhasin; Joanne M Murabito; Henri Wallaschofski; Ramachandran S Vasan Journal: Clin Endocrinol (Oxf) Date: 2013-04 Impact factor: 3.478
Authors: Corey E Ventetuolo; Grayson L Baird; R Graham Barr; David A Bluemke; Jason S Fritz; Nicholas S Hill; James R Klinger; Joao A C Lima; Pamela Ouyang; Harold I Palevsky; Amy J Palmisciano; Ipsita Krishnan; Diane Pinder; Ioana R Preston; Kari E Roberts; Steven M Kawut Journal: Am J Respir Crit Care Med Date: 2016-05-15 Impact factor: 21.405
Authors: Daniel P Sieveking; Patrick Lim; Renée W Y Chow; Louise L Dunn; Shisan Bao; Kristine C Y McGrath; Alison K Heather; David J Handelsman; David S Celermajer; Martin K C Ng Journal: J Exp Med Date: 2010-01-13 Impact factor: 14.307