When divided by left ventricular ejection fraction (LVEF), patients with an LVEF ≤40% had a higher prevalence of high urea, CKD stage 3 to 5, hyperbilirubinemia, deranged liver function test results, and elevated CRP and troponin‐T, than patients with a LVEF >40% (Table S5). This evidence concerns the gene CRP and chronic kidney disease.