Dynamic changes of reproductive hormone levels and related factors in old and middleaged men in health examination / 中华男科学杂志

Objective@#To investigate the dynamic changes of serum reproductive hormone levels in old and middleaged males in health examination and their correlation with age and lipid profile.@*METHODS@#This study included 4 333 men in health examination from January 2011 to December 2014. The men were aged from 40 to 85 years old and divided into seven fiveyearspan age groups. We determined the levels of serum testosterone (T), luteinizing hormone (LH), folliclestimulating hormone (FSH), estradiol (E2), progesterone (P), prolactin (PRL), total cholesterol (TC), triglyceride (TG), lowdensity lipoprotein cholesterol (LDLC), highdensity lipoprotein cholesterol (HDLC), and the testosterone secretion index (TSI = T/LH). We analyzed the obtained data using SPSS Pram, KruskalWallis H test, MannWhitney U test, exponential regression, and Spearman correlation analysis.@*RESULTS@#Statistically significant differences were found in LH, FSH, E2 and TSI among the seven age groups (P40 years old males. T and TSI were reduced in the 40－59 years old men from 2011 to 2014, and so was E2 in the 40－54 yr group. Lowlevel testosterone is closely related to dyslipidemia.