Language
English
Publication Date
2-1-2025
Journal
Annals of the Rheumatic Diseases
DOI
10.1136/ard-2024-226156
PMID
39919894
PMCID
PMC11822225
PubMedCentral® Posted Date
2-13-2025
PubMedCentral® Full Text Version
Author MSS
Abstract
Introduction: Chronic kidney disease (CKD) is a common comorbidity of rheumatoid arthritis (RA). The association of longitudinal RA disease activity with long-term kidney function has remained uncertain.
Method: We analysed a multicentre prospective RA registry in the USA from 2001 to 2022. The exposure was updated time-averaged Clinical Disease Activity Index (TA-CDAI) categories from study enrolment. The primary outcome was a longitudinal estimated glomerular filtration rate (eGFR) change. Secondary outcomes included developments of CKD stage G3a (eGFR< 60 mL/min/1.73 m2) and stage G3b (eGFR< 45 mL/min/1.73 m2). Results were adjusted for relevant time-fixed and time-varying covariates.
Results: 31 129 patients (median age: 58.0 years, female: 76.3%, median eGFR: 90.7 mL/min/1.73 m2) contributed 234 973 visits and 146 778 person-years of follow-up. Multivariable mixed-effect linear model showed an average annual eGFR decline during follow-up in the TA-CDAI-remission group of -0.83 mL/min/1.73 m2 and estimated additional annual declines (95% CI) of -0.09 (-0.15 to -0.03) in low, -0.17 (-0.23 to -0.10) in moderate and -0.18 (-0.27 to -0.08) mL/min/1.73 m2 in high disease activity patients. Compared with TA-CDAI remission, adjusted HRs (95% CI) for CKD stage G3a during follow-up were 1.15 (1.01 to 1.30) in low, 1.22 (1.06 to 1.40) in moderate and 1.27 (1.05 to 1.52) in high disease activity; for CKD stage G3b, 1.22 (0.84 to 1.76) in low, 1.66 (1.12 to 2.45) in moderate and 1.93 (1.16 to 3.20) in high disease activity.
Conclusions: Higher RA disease activity was associated with accelerated eGFR decline and increased risk of clinically relevant kidney dysfunction. Future intervention studies should attempt to replicate the association between RA disease activity and eGFR.
Keywords
Humans, Arthritis, Rheumatoid, Female, Middle Aged, Male, Registries, Glomerular Filtration Rate, Renal Insufficiency, Chronic, Prospective Studies, Aged, Severity of Illness Index, Disease Progression, United States, Rheumatoid arthritis, kidney function, chronic kidney disease, nephrosclerosis, vascular inflammation
Published Open-Access
yes
Recommended Citation
Fukui, Sho; Winkelmayer, Wolfgang C; Tedeschi, Sara K; et al., "Disease Activity of Rheumatoid Arthritis and Kidney Function Decline: A Large Prospective Registry Study" (2025). Faculty and Staff Publications. 4121.
https://digitalcommons.library.tmc.edu/baylor_docs/4121