Fig. 1.
Study approach to create IPF cohort and subgroups. ATS/ERS/JRS/ALAT, American Thoracic Society/European Respiratory Society/Japanese Respiratory Society/Latin American Thoracic Association; BMI, body mass index; EMR, electronic medical record; HRCT, high-resolution computer tomography; ILD, interstitial lung disease; IPF, idiopathic pulmonary fibrosis; UIP, usual interstitial pneumonia.