title: Association between body fat distribution and androgen deficiency in middle-aged and elderly men in China.
abstract: The objective of the present study was to examine the association between body fat distribution and total testosterone (TT) and free testosterone (FT) levels among middle-aged and elderly men. A total of 922 male residents aged 40-70 years from a community in Shanghai, China, participated in the study. Their waist circumference (WC), waist-height ratio (WHtR), body mass index (BMI), and TT and FT concentrations were measured. Logistic regression models were used to estimate testosterone deficiency risk on the basis of anthropometric indices. BMI, WC and WHtR were all associated with TT deficiency. The participants in the highest quartiles of above-mentioned anthropometric indices had the highest risk of TT deficiency (BMI: odds ratio (OR)=4.40, 95% confidence interval (CI)=2.69-7.19; WC: OR=3.47, 95% CI=2.14-5.60; WHtR: OR=2.89, 95% CI=1.76-4.76). WC and WHtR were associated with FT deficiency. The participants in the highest quartiles had the highest risk of FT deficiency (WC: OR=1.87, 95% CI=1.18-2.97; WHtR: OR=1.67, 95% CI=1.04-2.66). The association between BMI and FT deficiency was not statistically significant (OR=1.21 for the highest quartile, 95% CI=0.78-1.87). Our study demonstrated that both general and abdominal obesity were associated with TT deficiency, whereas only abdominal obesity was found to be associated with FT deficiency.
authors.affiliation: Weifang Medical University, Weifang, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Ren
authors.affiliation: National Population and Family Planning Key Laboratory of Contraceptive Drugs and Devices, Shanghai Institute of Planned Parenthood Research, Shanghai, China.
authors.forename: B
authors.initials: B
authors.lastname: Wang
authors.affiliation: National Population and Family Planning Key Laboratory of Contraceptive Drugs and Devices, Shanghai Institute of Planned Parenthood Research, Shanghai, China.
authors.forename: X
authors.initials: X
authors.lastname: Liu
authors.affiliation: Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
authors.forename: Z
authors.initials: Z
authors.lastname: Li
authors.affiliation: National Population and Family Planning Key Laboratory of Contraceptive Drugs and Devices, Shanghai Institute of Planned Parenthood Research, Shanghai, China.
authors.forename: W
authors.initials: W
authors.lastname: Yuan
authors.affiliation: Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Sun
authors.affiliation: National Population and Family Planning Key Laboratory of Contraceptive Drugs and Devices, Shanghai Institute of Planned Parenthood Research, Shanghai, China.
authors.forename: M
authors.initials: M
authors.lastname: Miao
mesh_terms: D000328:Adult; D000368:Aged; D050218:Body Fat Distribution; D001827:Body Height; D015992:Body Mass Index; D002681:China; D003430:Cross-Sectional Studies; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000150:complications; D056128:Obesity, Abdominal / Q000150:complications; D016017:Odds Ratio; D012307:Risk Factors; D013739:Testosterone / Q000097:blood* / Q000172:deficiency*; D055105:Waist Circumference
chemical_list: D013739:Testosterone