The study of serum testosterone concentration in different aged men / 中华老年医学杂志

ABSTRACT

Objective To study the relationship of total serum testosterone and free testosterone with the age of men. Methods A total of 136 heathy men were classified into six groups. Enzyme immunoassay was applied to measure the serum level of testosterone and free testosterone, and then the relationship between the androgen change and the age was analyzed. Results The level of testosterone of 20-, 30-, 40-, 50-, 60- and 70-78 age group were (6.208?2.275),(4.960?1.719),(5.910?3.054),(4.964?1.531) ,(3.967?2.514) and (4.146?2.497) mg/L respectively.Free testosterone concertrations were(23.300?9.530),(22.060?12.627),(16.290?6.858),(14.782?6.851) ,(14.005?8.724) and (12.256?7.462) ng/L respectively. The level of blood testosterone decreased in 60-year age groups and the difference between 20-, 30-year old group and 60-year old group was significant (P