Fig. 2
From: Prevalence of idiopathic pulmonary fibrosis in Japan based on a claims database analysis
Age- and sex-specific prevalence of idiopathic pulmonary fibrosis in Japan and the US in a men and b women. The prevalence was estimated based on the Medical Data Vision Co., Ltd database, fourth NDB Open Data [15], and demographic data [16] (April 2017–March 2018) for Japan and the IBM MarketScan Commercial Database (January–December 2017) for aged < 65 years and Medicare 5% sample data (January–December 2018) for aged ≥ 65 years for the US. Dotted lines indicate 95% confidence intervals