Chronic Rhinosinusitis: A “Simple” Complex Condition

Often in medicine, what seems simple is actually very complex. That is the case with chronic rhinosinusitis (CRS). CRS is a common chronic illness in the United States and worldwide, affecting all age groups. In the United States, its prevalence is 146 per 1000 population; 12.3% of adults are diagnosed with CRS, according to Centers for Disease Control and Prevention data. In Europe, the incidence is 10.9%, as per GA2LEN data. In China, it may be as high as 13%. Self-diagnosis and treatment complicate our ability to understand the actual prevalence of this disorder.

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