PMID- 25441980 OWN - NLM STAT- MEDLINE DCOM- 20150629 LR - 20221207 IS - 1743-6109 (Electronic) IS - 1743-6095 (Linking) VI - 12 IP - 2 DP - 2015 Feb TI - The prevalence and the risk factors of testosterone deficiency in newly diagnosed and previously known type 2 diabetic men. PG - 389-97 LID - 10.1111/jsm.12777 [doi] AB - INTRODUCTION: While the epidemiology of testosterone deficiency has been well described in men with previously known type 2 diabetes mellitus (T2DM), it was less reported in those with untreated, newly diagnosed T2DM. AIM: The aim of this study was to investigate the prevalence and the risk factors of testosterone deficiency of men with newly diagnosed T2DM. METHODS: The cross-sectional study included 105 men (mean age: 61.2 +/- 6.8 years) with previously known T2DM and another 81 (57.8 +/- 8.8 years) with newly diagnosed T2DM. All received health checkup and sex hormone measurement at our institute in 2009. MAIN OUTCOME MEASURES: We calculated the prevalence and explored the risk factors of low total (<300 ng/dL) and free (<6 ng/dL) testosterone in men with newly diagnosed and previously known T2DM. RESULTS: Men with previously known T2DM were older and had higher diastolic pressure and greater fasting glucose. There was no significant difference in total (358.0 [155.0] ng/dL vs. 363.0 [154.0] ng/dL, P=0.68) and free (7.2 [2.5] ng/dL vs. 7.4 [2.4]ng/dL, P=0.84) testosterone and sex-hormone binding globulin (SHBG) (27.3 [22.3]nmol/L vs. 28.7 [14.9]nmol/L, P=0.46). The prevalence of low total and free testosterone was 28.4% and 21.0%, respectively, in men with newly diagnosed T2DM, and was 26.7% and 19.0% in those with previously known T2DM. In men with previously known T2DM, better glycemic control (HbA1c <7%) was associated with a higher level of total testosterone and a lower risk of low total testosterone. Men with newly diagnosed and previously known T2DM shared similar risk factors of low total testosterone, including high HbA1c (>/= 7%), low SHBG (<20 nmol/L), obesity, hyperuricemia, hypertriglycemia, and metabolic syndrome. Elevated prostate-specific antigen was a protective factor of low total testosterone. However, none of these factors was associated with low free testosterone. CONCLUSIONS: The prevalence and the risk factors of testosterone deficiency are similar between newly diagnosed and previously known type 2 diabetic men. CI - (c) 2014 International Society for Sexual Medicine. FAU - Ho, Chen-Hsun AU - Ho CH AD - Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Urology, Taipei Medical University-Shuang Ho Hospital, Taipei, Taiwan. FAU - Jaw, Fu-Shan AU - Jaw FS FAU - Wu, Chia-Chang AU - Wu CC FAU - Chen, Kuan-Chou AU - Chen KC FAU - Wang, Chih-Yuan AU - Wang CY FAU - Hsieh, Ju-Ton AU - Hsieh JT FAU - Yu, Hong-Jeng AU - Yu HJ FAU - Liu, Shih-Ping AU - Liu SP LA - eng PT - Journal Article DEP - 20141202 PL - Netherlands TA - J Sex Med JT - The journal of sexual medicine JID - 101230693 RN - 0 (Blood Glucose) RN - 0 (Glycated Hemoglobin A) RN - 0 (Sex Hormone-Binding Globulin) RN - 0 (hemoglobin A1c protein, human) RN - 3XMK78S47O (Testosterone) RN - EC 3.4.21.77 (Prostate-Specific Antigen) SB - IM MH - Age of Onset MH - Aged MH - Blood Glucose/*metabolism MH - Cross-Sectional Studies MH - Diabetes Mellitus, Type 2/complications/*metabolism/physiopathology MH - Glycated Hemoglobin/*metabolism MH - Humans MH - Male MH - Middle Aged MH - Obesity/complications/*metabolism MH - Prevalence MH - Prostate-Specific Antigen/*metabolism MH - Risk Factors MH - Sex Hormone-Binding Globulin/metabolism MH - Testosterone/*deficiency/metabolism OTO - NOTNLM OT - Hyperuricemia OT - Metabolic Syndrome OT - Obesity OT - Prostate-Specific Antigen OT - Testosterone Deficiency OT - Type 2 Diabetes Mellitus EDAT- 2014/12/03 06:00 MHDA- 2015/06/30 06:00 CRDT- 2014/12/03 06:00 PHST- 2014/12/03 06:00 [entrez] PHST- 2014/12/03 06:00 [pubmed] PHST- 2015/06/30 06:00 [medline] AID - S1743-6095(15)30919-X [pii] AID - 10.1111/jsm.12777 [doi] PST - ppublish SO - J Sex Med. 2015 Feb;12(2):389-97. doi: 10.1111/jsm.12777. Epub 2014 Dec 2.