Number of noninstitutionalized adults with diagnosed hay fever in the past 12 months: 18.2 million (2002)
Percent of noninstitutionalized adults with diagnosed hay fever in the past 12 months: 9 (2002)
Number of children with diagnosed hay fever in the past 12 months: 7.5 million (2002)
Percent of children with diagnosed hay fever in the past 12 months: 10.3 (2002)
Number of physician office visits for allergic rhinitis: 14 million (2002)
