The associations of age, lifestyle factors and chronic disease with testosterone in men: the Tromsø Study.

  title={The associations of age, lifestyle factors and chronic disease with testosterone in men: the Troms{\o} Study.},
  author={Johan Svartberg and Monica Midtby and Kaare Harald B{\o}naa and Johan A. Sundsfjord and Ragnar M. Joakimsen and Rolf Jorde},
  journal={European journal of endocrinology},
  volume={149 2},
OBJECTIVE To study whether lifestyle factors and/or chronic disease are associated with the age-related decline of total and free testosterone in men, or if these factors might be associated with the variation of total and free testosterone but not with their age-related decline. DESIGN A population-based, cross-sectional study was used. METHODS Total testosterone and sex hormone binding globulin (SHBG) levels were analyzed and free testosterone levels were calculated in 1563 men… 

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