RESUMO
Objective@#To investigate the dynamic changes of serum reproductive hormone levels in old and middleaged 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 fiveyearspan age groups. We determined the levels of serum testosterone (T), luteinizing hormone (LH), folliclestimulating hormone (FSH), estradiol (E2), progesterone (P), prolactin (PRL), total cholesterol (TC), triglyceride (TG), lowdensity lipoprotein cholesterol (LDLC), highdensity lipoprotein cholesterol (HDLC), and the testosterone secretion index (TSI = T/LH). We analyzed the obtained data using SPSS Pram, KruskalWallis H test, MannWhitney 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. Lowlevel testosterone is closely related to dyslipidemia.