The clinical relevance of sex hormone levels and sexual activity in the ageing male

Hyeong Sik Ahn, C. M. Park, S. W. Lee

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

Objectives: To assess the changes in sex hormone levels with age and the relationship of sexual functioning to testosterone levels, evaluating serum testosterone levels and erectile function in men with lower urinary tract symptoms (LUTS). Patients and methods: The study included 213 men with LUTS (age range 31-78 years) who had no con-firmed erectile dysfunction. Their serum total and free testosterone, and sex-hormone binding globulin (SHBG) levels were measured, and they completed the International Index of Erectile Function (IIEF) questionnaire. Results: The total and free testosterone levels decreased and SHBG increased with age, but only the change in free testosterone and SHBG were statistically significant. The correlation with age was closer for free testosterone (r=-0.356, P<0.001) than for SHBG (r=0.177, P=0.010). Regression analysis of the five domain scores of the IIEF and three hormonal levels, after correcting for age, showed that free testosterone level was significantly correlated with erectile function (r=0.2136, P=0.005) and orgasmic function (r=0.179, P=0.020), but SHBG levels were significantly correlated only with orgasmic function (r=-0.154, P=0.046). Total testosterone levels showed no significant correlation with any of the five domains of the IIEF. Conclusions: Of the sex hormone levels, the change in free testosterone correlated most closely with ageing and had the closest correlation with sexual activity. Contrary to previous reports, free testosterone and SHBG levels were significantly correlated with orgasmic function and/or erectile function rather than sexual desire. A complete study of sex hormone levels is needed to evaluate patients with erectile dysfunction.

Original languageEnglish
Pages (from-to)526-530
Number of pages5
JournalBJU International
Volume89
Issue number6
DOIs
Publication statusPublished - 2002 Sep 10

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Gonadal Steroid Hormones
Sexual Behavior
Testosterone
Sex Hormone-Binding Globulin
Lower Urinary Tract Symptoms
Erectile Dysfunction
Serum
Regression Analysis

Keywords

  • Erectile dysfunction
  • IIEF
  • Sexual activity
  • Testosterone

ASJC Scopus subject areas

  • Urology

Cite this

The clinical relevance of sex hormone levels and sexual activity in the ageing male. / Ahn, Hyeong Sik; Park, C. M.; Lee, S. W.

In: BJU International, Vol. 89, No. 6, 10.09.2002, p. 526-530.

Research output: Contribution to journalArticle

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