The Relationship between Sleep Disorders and Lower Urinary Tract Symptoms: Results from the NHANES

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Purpose:It is well established that sleep disorders are associated with the nocturia prevalence in men. While previous literature supports that patients with sleep disorders are at increased risk for nocturia, the risk of daytime lower urinary tract symptoms has not been well established.Materials and Methods:We examined the NHANES (National Health and Nutrition Examination Survey) database between 2006 and 2008. Men older than 40 years who completed the sleep, prostate and kidney questionnaires were included in study. The presence of lower urinary tract symptoms was defined as 2 or more symptoms, including hesitancy, incomplete emptying and/or nocturia. Multivariable models using logistic regression were constructed to compare groups of men with and without a sleep disorder.Results:Of the 3,071 men who completed all survey questions 270 (8.8%) reported a sleep disorder. Men with a sleep disorder had a significantly higher body mass index (30.8 vs 27.4 kg/m2), a greater likelihood of reporting diabetes (20.3% vs 10.2%) and more comorbidities (72.6% vs 45.2%, all p <0.01) than men without a sleep disorder. Multivariable logistic regressions demonstrated that men with a sleep disorder were more likely to report nocturia (OR 1.23), 2 or more lower urinary tract symptoms (OR 1.12) and daytime lower urinary tract symptoms (OR 1.27, all p <0.01).Conclusions:Sleep disorders are associated with an increased risk of nocturia and daytime lower urinary tract symptoms independent of body mass index, diabetes and an increased number of comorbidities. Based on the current data clinicians should consider assessing lower urinary tract symptoms in men with a sleep disorder since intervention could improve lower urinary tract symptoms and sleep disorders as well as daytime urinary symptoms.

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