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Fibrosis-4 index at diagnosis can predict all-cause mortality in patients with rheumatoid arthritis: A retrospective monocentric study

 Seung Up Kim  ;  Beom Kyung Kim  ;  Jun Yong Park  ;  Do Young Kim  ;  Sang Hoon Ahn  ;  Yong-Beom Park  ;  Kwang-Hyub Han  ;  Sang-Won Lee 
 MODERN RHEUMATOLOGY, Vol.30(1) : 70-77, 2020 
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Objectives: Comorbidities and conventional risk factors influence the prognosis of patients with rheumatoid arthritis (RA). We investigated whether liver fibrosis burden is associated with all-cause mortality in patients with RA.Methods: A total of 2812 patients with RA were retrospectively selected and reviewed. Liver fibrosis was assessed using the fibrosis-4 index (FIB-4) [age (years)× aspartate aminotransferase level (IU/L)/platelet count (109/L)/√alanine aminotransferase (IU/L)].Results: The mean patient age was 51.5 years (482 men and 2330 women). The mean erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) level, and FIB-4 were 43.5 mm/h, 9.0 mg/L, and 1.0, respectively. Methotrexate was used in 2524 (89.9%) patients, and biological or targeted synthetic disease-modifying antirheumatic drugs were used in 310 (11.0%) patients. During the follow-up period (mean 93.7 months), 89 (3.2%) patients died. Deceased patients had a significantly higher age (mean 64.4 vs. 51.1 years); frequency of male sex (31.5% vs. 16.7%), hypertension (HTN; 40.4 vs. 18.5%), and diabetes mellitus (DM; 25.8% vs. 7.7%); ESR (mean 57.1 vs. 43.0 mm/h); CRP (mean 16.9 vs. 8.7 mg/L); and FIB-4 (mean 1.5 vs. 1.0) (all p < .05) than the survivors. On multivariate analysis, higher FIB-4 was found to be independently associated with a higher rate of all-cause mortality (hazard ratio =1.130, p = .004), together with male sex, HTN, DM, ESR, and intensity of glucocorticoid exposure, whereas the use of methotrexate was independently protective (all p < .05).Conclusion: Besides conventional risk factors, fibrotic burden, assessed using FIB-4, might be useful for risk stratification of patients newly diagnosed as having RA.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Do Young(김도영)
Kim, Beom Kyung(김범경) ORCID logo https://orcid.org/0000-0002-5363-2496
Kim, Seung Up(김승업) ORCID logo https://orcid.org/0000-0002-9658-8050
Park, Yong Beom(박용범)
Park, Jun Yong(박준용) ORCID logo https://orcid.org/0000-0001-6324-2224
Ahn, Sang Hoon(안상훈) ORCID logo https://orcid.org/0000-0002-3629-4624
Lee, Sang-Won(이상원) ORCID logo https://orcid.org/0000-0002-8038-3341
Han, Kwang-Hyub(한광협) ORCID logo https://orcid.org/0000-0003-3960-6539
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