1. COUNTERPOINT: Does Interstitial Pneumonia With Autoimmune Features Represent a Distinct Class of Patients With Idiopathic Interstitial Pneumonia? No 
Justin M. Oldham, MD, Sonye K. Danoff, MD, PhD, FCCP 
CHEST 
Volume 155, Issue 2, Pages (February 2019)
DOI: /j.chest
Copyright © 2018 American College of Chest Physicians Terms and Conditions

2. Figure 1
Kaplan–Meier survival curves of IPAF, IPF, and CTD-ILD cohorts. A, Overall, the IPAF cohort survival was significantly worse than the CTD-ILD cohort (P < .001) and marginally better than the IPF cohort (P = .07). B, After stratification of the IPAF cohort according to the presence of a UIP pattern on high-resolution CT imaging and/or surgical lung biopsy, patients with IPAF but without UIP demonstrated survival similar to those with CTD-ILD (P = .45), whereas those with UIP exhibited survival similar to those with IPF (P = .51). CTD-ILD = connective tissue disease-associated interstitial lung disease; IPAF = interstitial pneumonia with autoimmune features; IPF = idiopathic pulmonary fibrosis; UIP = usual interstitial pneumonia.
(Reproduced with permission from the ©ERS European Respiratory Journal Jun 2016;47(6): ;
CHEST  , DOI: ( /j.chest )
Copyright © 2018 American College of Chest Physicians Terms and Conditions