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Hypogonadism is characterized by clinical and biochemical evidence of testosterone deficiency. Low testosterone levels have been reported in patients with type 2 diabetes mellitus (T2DM), which can predispose to coronary artery disease (CAD). It has been proposed that diabetic men with proven CAD have lower androgen levels than patients with normal coronary arteriograms. We conducted this study with the objective to determine the frequency of hypogonadism in patients with diabetes mellitus and its relationship with CAD.  Materials and Methods  It was a comparative cross-sectional study conducted at a tertiary care hospital. We recruited a total of 108 patients, divided into two groups, 54 patients in each arm of the study. Group A comprised patients with CAD, whereas group B consisted of diabetic patients without CAD. Hypogonadism was defined on the basis of erectile dysfunction clinically and total testosterone levels biochemically. CAD was diagnosed on the basis of findings of coronary angiography. Fasting blood samples were drawn and evaluated for fasting plasma glucose, HbA1c, fasting lipid profile, thyroid-stimulating hormone (TSH), serum prolactin, blood urea, serum creatinine, liver function tests (LFT), total testosterone, luteinizing hormone (LH), and follicle‑stimulating hormone (FSH) levels. Hypogonadism among two study groups was compared using chi-square and serum testosterone level was compared using independent  t -test with  p  < 0.05 considered as statistically significant.  Results  There were 108 subjects in the study with the mean age of 54.4 ± 4.29 (range: 22 to 68) years. The mean duration of T2DM was 12.6 ± 8.2 years. The mean BMI of patients with and without CAD was 25.7 ± 2.37 and 26.9 ± 4.21 kg/m 2 , respectively. There was no significant difference in waist circumference and obesity between both the groups ( p -value > 0.05). Fasting plasma glucose and HbA1c in both groups were not significantly different. Testosterone levels and erectile dysfunction score were found lower in T2DM with CAD compared to T2DM patients without CAD, although this difference was not statistically significant ( p -value: 0.051). The majority of the subjects with hypogonadism in both groups had a hypogonadotrophic hypogonadism (39/42, 92.9% versus 16/20, 80.0%). No statistically significant difference was seen in serum levels of LH and FSH between the study groups. The frequency of hypogonadism was found higher in the group with CAD (72.2%, 39/54) as compared with T2DM patients without CAD (37.03%, 20/54;  p -value = 0.000).   Conclusion  Testosterone deficiency is a significant problem of males with T2DM. Patients with CAD have markedly low levels of testosterone as compared with patients without any CAD.

Frequency of Hypogonadism in Type 2 Diabetes Mellitus Patients with and without Coronary Artery Disease