What is the prevalence of restrictive lung disease in the US?

Updated: Sep 16, 2020
  • Author: Jonathan Robert Caronia, DO; Chief Editor: John J Oppenheimer, MD  more...
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Answer

For intrinsic lung diseases, studies cite an overall prevalence of 3-6 cases per 100,000 persons. The prevalence of idiopathic pulmonary fibrosis (IPF) is 27-29 cases per 100,000 persons. [3, 4] The prevalence for adults aged 35-44 years is 2.7 cases per 100,000 persons. Prevalence exceeded 175 cases per 100,000 persons among patients older than 75 years. Exposure to dust, metals, organic solvents, and agricultural employment is associated with increased risk.

In North America, the prevalence of sarcoidosis is 10-40 cases per 100,000 persons. [5]

The incidence of chronic interstitial lung diseases in persons with collagen-vascular diseases is variable, but it is increasing for most diseases. [6]

Kyphoscoliosis is a common extrinsic disorder. It is associated with an incidence of mild deformities amounting to 1 case per 1000 persons, with severe deformity occurring in 1 case per 10,000 persons. [7]

Other nonmuscular and neuromuscular disorders are rare, but their incidence and prevalence are not well known.

According to the US Centers for Disease Control and Prevention (CDC), 35.9% of Americans older than 20 years are obese, and 69% of Americans are at least overweight (body mass index [BMI] 25-30). [8]


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