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Published on: June 6, 2018
Association between inflammatory indexes and erectile dysfunction in U.S. adults: National Health and Nutrition
Chunhui Liu1, Yue Gao2, Jie Ji2
1Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, 210009, China.
Background:
The association of inflammatory biomarkers with erectile dysfunction (ED) is still largely unknown.
Aim:
The study sought to explore the association of inflammatory biomarkers with ED in U.S. adults.
Methods:
Participant data for this study were extracted from the National Health and Nutrition Examination Survey, and individuals that lacked information on clinical variables were excluded. Dose-response curve analysis was applied to explore the association of inflammatory biomarkers with ED prevalence. The confounders were adjusted for with weighted logistic regression analysis. We employed 1:1 propensity score matching to eliminate the effects of clinical variables to confirm the reliability of the results.
Outcomes:
ED prevalence was investigated with potential risk factors.
Results:
A total of 2331 men ≥20 years of age who participated in the National Health and Nutrition Examination Survey 2001-2004 were included in this study. Compared with individuals without ED, ED cohort displayed higher levels of neutrophil-to-lymphocyte ratio, lymphocyte-to-monocyte ratio, systemic immune-inflammatory index, and systemic inflammation response index. Dose-response curve analysis indicated ED prevalence increased with the increase of platelet-to-lymphocyte ratio, systemic immune-inflammatory index, and systemic inflammation response index. Weighed logistic regression analysis revealed neutrophil-to-lymphocyte ratio was positively associated with ED. The reliability of the results was confirmed by 1:1 propensity score matching reanalysis.
Clinical Implications:
Individuals with chronic inflammatory conditions should be alert for the development of ED.
Strengths And Limitations:
It is a large controlled study to investigate the relationship between inflammatory indexes and ED. However, it is a cross-sectional study and it lacks an accurate assessment of the degree of ED.
Conclusion:
Inflammatory biomarkers were associated with ED prevalence.
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