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Survival rates between groups stratified by initial predictors of anti-MDA5-associated RP-ILD mortality. Kaplan-Meier survival curves for anti-MDA5-associated RP-ILD: (a) age at onset ≥ 57 years and <57 years; (b) periungual erythema presence versus absent; (c) lymphocyte count ≥ 0.7 × 109/L and <0.7 × 109/L; (d) CRP ≥ 28.9 mg/L and <28.9 mg/L. RP-ILD: rapidly progressive interstitial lung disease; MDA5: melanoma differentiation-associated gene 5; DM: dermatomyositis.
