NPPB and Renal insufficiency: Age, gender, renal insufficiency (Cr ≥ 69 μmol/L), sST2 ≥ 63.8 ng/ml, TNI ≥ 13.3 ng/L, NT-proBNP ≥ 3182 pg/ml, CRP ≥ 26.5 mg/L and LVEF ≤ 40% were introduced into the logistic regression model and analyzed by applying the forward stepwise method.