Table 1. Epidemiological data on idiopathic pulmonary fibrosis in Brazil, as calculated on the basis of the rates reported in two studies conducted in the United States and data from the 2010 Brazilian National Census.⁽⁵⁾ .

Calculations based on the broad definition of idiopathic pulmonary fibrosis in Coultas et al.⁽⁶⁾
Age bracket	Annual incidence	Prevalence
>75 years	4,133	6,282
65-74 years	2,881	7,462
55-64 years	1,770	2,364
45-54 years	689	1,843
35-44 years	523	353
Total	9,997	18,305
Calculations based on the narrow definition of idiopathic pulmonary fibrosis in Raghu et al.⁽⁷⁾
Age bracket	Annual incidence	Prevalence
>75 years	1,495	3,540
65-74 years	1,608	3,320
55-64 years	1,623	3,126
45-54 years	1,271	2,430
35-44 years	621	1,103
18-34 years	223	426
Total	6,841	13,945

Table 1. Epidemiological data on idiopathic pulmonary fibrosis in Brazil, as calculated on the basis of the rates reported in two studies conducted in the United States and data from the 2010 Brazilian National Census.(5) .