Spearman rank correlation coefficient (ρ) was used to assessed the correlation between CEC counts in CAD patients with angina pectoris and each initial presenting serum cardiac biomarkers. (A) No correlation was observed between CEC count and cTnI value (ρ = 0.01, p = 0.987). (B) No correlation was observed between CEC count and AST value (ρ = 0.02, p = 0.910). (C) No correlation was observed between CEC count and LDH value (ρ = 0.15, p = 0.271). (D) No correlation was observed between CEC count and CK value (ρ = 0.18, p = 0.181). (E) No correlation was observed between CEC count and CK-MB value (ρ = -0.14, p = 0.326). (F) No correlation was observed between CEC count and α-HBDH value (ρ = 0.17, p = 0.212).