ArticleZhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences2026
[Development and validation of a risk assessment model for interstitial lung disease in patients with rheumatoid arthritis].
Article in Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectivesTo develop and validate a risk assessment model for interstitial lung disease (ILD) in patients with rheumatoid arthritis (RA).
methodsA retrospective study analyzed clinical data from 312 patients with RA treated at Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine between January 1, 2021 and June 30, 2024. Patients were divided into an RA-only group and an RA-ILD group based on the presence of ILD. Demographic characteristics, laboratory test results, clinical manifestations, disease activity scores, medication history, joint X-ray findings, and traditional Chinese medicine (TCM) syndrome types were collected as potential predictors. Variables were screened using univariable analysis and LASSO regression, and binary logistic regression was used to build the model and construct a nomogram using the rms package in R software. The discrimination and clinical utility of this model were assessed via receiver operating characteristic (ROC) and decision curves, and calibration was evaluated using Bootstrap-resampled (1000 iterations) calibration curves. A LightGBM machine learning model was also developed based on the selected predictors, and its performance was evaluated using ROC and precision-recall (PR) curves. Five-fold cross-validation was employed to further assess the robustness of the predictors.
resultsMultivariate logistic regression identified sex, age, anti-cyclic citrullinated peptide (CCP) antibody, disease activity score in 28 joints (DAS28) based on erythrocyte sedimentation rate (ESR), Krebs von den Lungen-6 (KL-6), international normalized ratio (INR), activated partial thromboplastin time (APTT), and methotrexate use as independent predictors of RA-ILD (all
conclusionsThe developed risk assessment model for ILD in patients with RA indicates high predictive ability and clinical utility.
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