1. Risk Factors for Erectile Dysfunction in Men with HTLV-1
- Author
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Paulo Novis Rocha, Cassius José Vitor de Oliveira, Rosana Andrade, Edgar Marcelino de Carvalho Filho, and José Abraão Carneiro Neto
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Adult ,Male ,0301 basic medicine ,medicine.medical_specialty ,Urology ,Endocrinology, Diabetes and Metabolism ,Population ,030232 urology & nephrology ,Young Adult ,03 medical and health sciences ,symbols.namesake ,0302 clinical medicine ,Endocrinology ,Erectile Dysfunction ,Risk Factors ,Internal medicine ,Tropical spastic paraparesis ,Odds Ratio ,medicine ,Humans ,Obesity ,Risk factor ,education ,Fisher's exact test ,Aged ,Metabolic Syndrome ,Human T-lymphotropic virus 1 ,education.field_of_study ,Expanded Disability Status Scale ,business.industry ,Middle Aged ,medicine.disease ,HTLV-I Infections ,Psychiatry and Mental health ,Cross-Sectional Studies ,Logistic Models ,030104 developmental biology ,Erectile dysfunction ,Reproductive Medicine ,Immunology ,symbols ,Waist Circumference ,Metabolic syndrome ,business ,Dyslipidemia - Abstract
Background Erectile dysfunction (ED) occurs in more than 50% of patients with human T-cell lymphotropic virus type 1 (HTLV-1) infection. In the general population, atherosclerosis is the main risk factor related to ED. Aim To compare the contribution of neurologic disorders from HTLV-1 with that of atherosclerosis as risk factors for ED in men with HTLV-1. Methods In this cross-sectional study, men 18 to 70 years old with HTLV-1 were classified into one of two groups according to the presence or absence of ED. They were compared for obesity, waist circumference, dyslipidemia, metabolic syndrome, diabetes mellitus, high blood pressure, and neurologic manifestations. Comparisons between proportions were performed using the χ2 or Fisher exact test. Logistic regression analysis was performed to identify predictors of ED. Subjects with HTLV-1 were classified into three groups based on Osame's Disability Motor Scale and the Expanded Disability Status Scale: (i) HTLV-1 carriers; (ii) probable HTLV-1–associated myelopathy or tropical spastic paraparesis; and (iii) definitive HTLV-1–associated myelopathy or tropical spastic paraparesis. The International Index of Erectile Function was used to determine the degree of ED. Results In univariate logistic regression, age older 60 years (P = .003), diabetes mellitus (P = .042), and neurologic disease (P < .001) were associated with ED. In the multivariate model, the odds of ED was highest in patients with neurologic disease (odds ratio = 22.1, 95% CI = 5.3–92.3), followed by high blood pressure (odds ratio = 6.3, 95% CI = 1.4-30.5) and age older than 60 years (odds ratio = 4.6, 95% CI = 1.3–17.3). Clinical Implications In men infected with HTLV-1, neurologic dysfunction is a stronger predictor of ED than risk factors for atherosclerosis. Strengths and Limitations The small number of patients limited the power of the statistical analysis, but clearly neurologic manifestations had a greater association with ED than risk factors for atherosclerosis, and there was no association between metabolic syndrome and severity of ED. Conclusion Neurologic impairment is the major cause of ED in individuals infected with HTLV-1 and risk factors for atherosclerosis did not have a strong relation with ED in this population.
- Published
- 2017
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