What is the incidence of croup among different age groups?

Updated: Oct 09, 2019
  • Author: Germaine L Defendi, MD, MS, FAAP; Chief Editor: Russell W Steele, MD  more...
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Primarily a disease of infants and toddlers, croup has a peak incidence in patients from age 6 months to 3 years. In North America, incidence peaks during the second year of life, at 5-6 cases per 100 children. Although uncommon after age 6 years, croup may be diagnosed in the preteen and adolescent years and, rarely in adults. [12]

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