PMID- 31272428 OWN - NLM STAT- MEDLINE DCOM- 20200108 LR - 20200225 IS - 1471-2466 (Electronic) IS - 1471-2466 (Linking) VI - 19 IP - 1 DP - 2019 Jul 4 TI - Interstitial pneumonia with autoimmune features show better survival and less exacerbations compared to idiopathic pulmonary fibrosis. PG - 120 LID - 10.1186/s12890-019-0868-9 [doi] LID - 120 AB - BACKGROUND: Patients with interstitial lung disease (ILD) who show features related to autoimmunity without meeting criteria for a defined connective tissue disease are categorized as interstitial pneumonia with autoimmune features (IPAF). The present study compared clinical characteristics and clinical outcomes of patients with IPAF to patients with connective tissue disease related-interstitial lung disease (CTD-ILD) and patients with idiopathic pulmonary fibrosis (IPF). METHODS: ILD patients who were consecutively enrolled in a single institution ILD cohort between 2008 and 2015 were evaluated for the study. Clinical data had been prospectively collected, while radiologic imaging and pathologic findings were re-reviewed for the present study. RESULTS: Out of 305 patients with ILD, 54 (17.7%) patients met the classification of IPAF, 175 (57.4%) patients had IPF, and 76 (24.9%) patients were diagnosed with CTD-ILD. Compared to IPF, incidences of acute exacerbations in 1,3 and 5 years were significantly less in the IPAF group (p = 0.022, p = 0.026 and p = 0.007, respectively). From multivariate analysis for mortality, age (p = 0.034, HR 1.022, 95% CI: 1.002-1.044), FVC (p < 0.001, HR 0.970, 95% CI: 0.955-0.984), ILD exacerbation (p = 0.001, HR 2.074, 95% CI: 1.366-3.148), and ILD type (p = 0.047, HR 0.436, 95% CI: 0.192-0.984 (IPAF vs IPF), respectively) showed significant association. CONCLUSIONS: Compared to the other ILD groups, IPAF showed distinct clinical characteristics. The IPAF group showed better survival and less episodes of exacerbation when compared to the IPF group. FAU - Lim, Jeong Uk AU - Lim JU AD - Division of Pulmonary and Critical Care Medicine, Department of Medicine, The Armed Forces Capital Hospital, Seongnam, South Korea. AD - Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 327, Sosa-ro, Bucheon-si, Gyeonggi-do, 14647, Republic of Korea. FAU - Gil, Bo Mi AU - Gil BM AD - Department of Radiology, Bucheon St Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, South Korea. FAU - Kang, Hye Seon AU - Kang HS AD - Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 327, Sosa-ro, Bucheon-si, Gyeonggi-do, 14647, Republic of Korea. FAU - Oh, Jongyeol AU - Oh J AD - Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 327, Sosa-ro, Bucheon-si, Gyeonggi-do, 14647, Republic of Korea. FAU - Kim, Yong Hyun AU - Kim YH AD - Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 327, Sosa-ro, Bucheon-si, Gyeonggi-do, 14647, Republic of Korea. kyh30med@catholic.ac.kr. FAU - Kwon, Soon Seog AU - Kwon SS AD - Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 327, Sosa-ro, Bucheon-si, Gyeonggi-do, 14647, Republic of Korea. LA - eng PT - Comparative Study PT - Journal Article DEP - 20190704 PL - England TA - BMC Pulm Med JT - BMC pulmonary medicine JID - 100968563 SB - IM MH - Aged MH - Aged, 80 and over MH - *Autoimmunity MH - Connective Tissue Diseases/*complications/immunology MH - Databases, Factual MH - Female MH - Humans MH - Idiopathic Pulmonary Fibrosis/*mortality MH - Incidence MH - Lung Diseases, Interstitial/etiology/*mortality MH - Male MH - Middle Aged MH - Multivariate Analysis MH - Prospective Studies MH - Republic of Korea/epidemiology MH - Survival Analysis MH - Tomography, X-Ray Computed PMC - PMC6610995 OTO - NOTNLM OT - Connective tissue disease OT - Idiopathic pulmonary fibrosis OT - Interstitial lung disease OT - Interstitial pneumonia with autoimmune features COIS- The authors declare that they have no competing interests. EDAT- 2019/07/06 06:00 MHDA- 2020/01/09 06:00 PMCR- 2019/07/04 CRDT- 2019/07/06 06:00 PHST- 2019/02/15 00:00 [received] PHST- 2019/05/30 00:00 [accepted] PHST- 2019/07/06 06:00 [entrez] PHST- 2019/07/06 06:00 [pubmed] PHST- 2020/01/09 06:00 [medline] PHST- 2019/07/04 00:00 [pmc-release] AID - 10.1186/s12890-019-0868-9 [pii] AID - 868 [pii] AID - 10.1186/s12890-019-0868-9 [doi] PST - epublish SO - BMC Pulm Med. 2019 Jul 4;19(1):120. doi: 10.1186/s12890-019-0868-9.