Univariate Cox regression analysis showed that fever, Gottron's sign, hemoglobin <100 g/L, platelet count <90 × 109/L, ferritin >1685 ng/mL, ALT >200 U/L, AST >200 U/L, fibrinogen <1.5 g/L, RP‐ILD, ANA, infection, and splenomegaly had predictive significance (all p < .05). Here, GPT is linked to interstitial lung disease.