The Association Between Obesity and the Nocturia in the U.S. Population

• Main Authors: Shinje Moon, Hye Soo Chung, Jae Myung Yu, Kwang Jin Ko, Don Kyoung Choi, Ohseong Kwon, Young Goo Lee, Sung Tae Cho
• Format: Article
• Language: English
• Published: Korean Continence Society 2019-06-01
• Series: International Neurourology Journal
• Subjects: Obesity; Body mass index; Nocturia
• Online Access: http://www.einj.org/upload/pdf/inj-1938062-031.pdf
• ISSN: 2093-4777; 2093-6931

Purpose We aimed to investigate the association of obesity with nocturia using a nationally representative sample of adults from the National Health and Nutrition Examination Survey (NHANES) between 2005 and 2012. Methods A total of 14,135 participants were included in this study. We performed a multivariate logistic regression analysis to find the odds ratio (OR) of obesity for nocturia. Furthermore, the OR of BMI for nocturia was analyzed using restricted cubic splines (RCS) with five knots. We conducted subgroup analysis according to age, sex, hypertension, and diabetes mellitus (DM) and further analysis with 1:1 matching data with propensity score. Results The participants who had body mass index (BMI) above 30 kg/m2 had a significantly higher OR for nocturia (OR, 1.39; 95% CI, 1.28–1.50) than those without obesity. RCS showed a dose-dependent relationship between BMI and OR for nocturia. Subgroup analysis by age, sex, hypertension, and DM showed similar results. Further analysis with 1:1 matching data showed a significant association of obesity with the prevalence of nocturia (OR, 1.25; 95% CI, 1.10–1.41). Conclusions This study reported that obesity was significant association with the prevalence of nocturia with dose-dependent manner, regardless of age, sex, hypertension, and DM after taking major confounding factors into account.