Adult bronchiolitis epidemiology and demographics
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Hadeel Maksoud M.D.[2]
Epidemiology and Demographics
Incidence
The incidence for adult bronchiolitis is not well recorded, it is estimated that in the USA 2 - 5% of all community acquired pneumonias have underlying bronchiolitis.
Prevalence
- The prevalence of adult-onset bronchiolitis is unknown.
- The most common cause of bronchiolitis in adults is RSV, most adults tend to be asymptomatic or carriers and therefore, prevalence is difficult to stipulate.
Case-fatality rate/Mortality rate
The attack rate for death caused by bronchiolitis complicated by pneumonia in elderly homes is approximately 2 - 5%.
Age
The incidence of adult bronchiolitis increases with age; the median age at diagnosis is 68 years.
Race
There is no racial predilection in adults.
Gender
Men are more commonly affected by bronchiolitis than women, and tend to have higher mortality rates.
Region
- Diffuse panbronchiolitis is a common disease that tends to affect Japan.
- Those of Hispanic, Native American and Alaskan origins tend to have a higher likelihood of hospitalization.
Developed Countries vs. Developing Countries
Developed and developing countries tend to have similar incidence, hospitalisation and mortality rates.