Fig. 3
From: Prevalence of idiopathic pulmonary fibrosis in Japan based on a claims database analysis
Percentage of patients with idiopathic pulmonary fibrosis with examinations for those aged ≥ 65 years in Japan and the US in a men and b women. The percentage was calculated by dividing the number of patients who underwent examinations at least once during the 2018 calendar year by the number of patients diagnosed with idiopathic pulmonary fibrosis in 2018. Examinations included high-resolution computerized tomography, bronchoalveolar lavage, transbronchial lung biopsy, or surgical lung biopsy