The Burden of Asthma and Allergic Rhinitis: Epidemiology and Health Care Costs.

Allergic rhinitis affects up to 78% of people with asthma, and asthma occurs in 38% of people with allergic rhinitis. Asthma has a prevalence of 8.7% among adults and 6.2% among children and accounts for $50 billion in medical costs and $32 billion in indirect and mortality costs in the United States, respectively. Allergic rhinitis occurs in 5% to 15% of people in the United States. Allergic rhinitis also accounts for a significant health care cost burden, predominantly in terms of indirect costs related to reduced quality of life and presenteeism.