The reference values of sex hormones and SHBG serum levels in subjects over 65 years old - The PolSenior Study.

Abstract:

INTRODUCTION:Over the last decade, average life expectancy has continuously increased. There has been no data on normal sex hormone (SH) levels in a Polish elderly population. In this study, we assessed SH in the PolSenior cohort to determine normal reference ranges in relation to gender, age, and cardiovascular disease risk factors (CVDRFs). MATERIAL AND METHODS:The study was performed with 4,352 participants (2,168 men and 2,088 women), aged from 55 to over 90 years, stratified in five-year age groups. Pre-elderly subjects (55-59 years of age) served as the reference group. We assessed total testosterone (TT), estradiol (TE2) and DHEA-S (by RIA) SHBG and FSH (by IRMA) and calculated free androgen and free estrogen indices (FAI and FEI). Percentage body fat (%BF) was measured by bioelectric impedance analysis. The CVDRFs assessment included blood pressure and biochemical (blood glucose, high-density lipoproteins, triglycerides) and anthropometric (waist circumference) components of the metabolic syndrome. RESULTS:TT was low in 19.9%, normal in 78.2%, and high in 1.8% of men. TE2 was low in 94.6% of women. Age and CVDRFs significantly influenced values of SHBG, FSH, TT, FAI, FEI, and DHEA-S in men, while in women values of FSH, TT and TE2 did not change. BMI and %BF affected SH regardless of the age groups and CVDRFs. CONCLUSIONS:Our findings suggest that the reference ranges stratified by the five-year age bands seem more accurate than those given for the overall population over 60 years of age. The clinical relevance of these reference ranges increases when they are considered in relation to CVDRFs, BMI and %BF.

journal_name

Endokrynol Pol

journal_title

Endokrynologia Polska

authors

Milewicz A,Krzyżanowska-Świniarska B,Miazgowski T,Jędrzejuk D,Arkowska A,Mieszczanowicz U,Bar-Andziak E

subject

Has Abstract

pub_date

2013-01-01 00:00:00

pages

82-93

issue

2

eissn

0423-104X

issn

2299-8306

journal_volume

64

pub_type

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