Cox Regression Analysis and Model Comparison In the univariable analysis, GAP stage, TORVAN stage, FVC%, and DLCO% were significant predictors of all-cause mortality, while the Charlson index did not reach statistical significance in the univariable model.
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Comorbidity in Patients with Idiopathic Pulmonary Fibrosis: Evaluation Using the Charlson, TORVAN and GAP Indices.
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