Fig. 1
From: Risk factors for an acute exacerbation of idiopathic pulmonary fibrosis
Incidence of acute exacerbation of idiopathic pulmonary fibrosis. The Kaplan-Meier curve demonstrates that the 1-year, 2-year, and 3-year incidences of AE-IPF were 9.6, 19.2 and 31.0 %, respectively
