Fig. 3b
From: Idiopathic pulmonary fibrosis in the United States: time to diagnosis and treatment
Survival Post-Initial Respiratory Hospitalization, N = 35,243. (Relative survival of patients with IPF in the cohort after initiation of oxygen or after the initial respiratory hospitalization. B. Shown is the Kaplan-Meier survival estimate of patients (N = 35,243) following initial respiratory hospitalization. The surviving fraction is expressed between 0 and 1.0, the time following initial respiratory hospitalization therapy is expressed in years)