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Association between obesity and chronic rhinosinusitis with nasal polyps: a national population-based study
Jae-Sung Nam1, Yun Ho Roh2, Wasan Almazouq Fahad3
1Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea.
Objectives:
We performed a cross-sectional analysis of data from the nationwide Korea National Health and Nutrition Examination Survey to evaluate the association between obesity and chronic rhinosinusitis with nasal polyps (CRSwNP) or without nasal polyp (CRSsNP).
Design:
Retrospective cross-sectional analysis of health survey data.
Setting:
Voluntary survey of representative South Korean populations.
Participants:
In total, 32 384 individuals aged 19 years or older with available data on CRS and obesity were included.
Primary And Secondary Outcome Measures:
Diagnosis of CRSwNP or CRSsNP was performed by trained otolaryngologists through sinus endoscopy and surveys of medical history. General and central obesity was diagnosed using body mass index (BMI) and waist circumference (WC), respectively.
Methods:
A multivariate logistic regression analysis was used to clarify the association between CRSwNP or CRSsNP and obesity according to BMI and WC. Non-obese individuals were recruited as controls.
Results:
The prevalence of CRSwNP was higher in the general (OR, 1.438; 95% CI, 1.170 to 1.768; p<0.001) and central (OR, 1.251; 95% CI, 1.031 to 1.520; p=0.033) obesity groups than in the control group. Prevalence of CRSsNP was not correlated with obesity. In a logistic regression analysis, olfactory dysfunction (OR, 1.329; 95% CI, 1.137 to 1.553; p<0.001) and purulent discharge (OR, 1.383; 95% CI, 1.193 to 1.603; p<0.001) showed a higher incidence in the central obesity group than in the control group.
Conclusions:
We demonstrated an association between CRSwNP and general and central obesity. Further investigations on the mechanism underlying this correlation are necessary for an improved understanding of the pathogenesis of CRSwNP.
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