CRP and angina pectoris: HCY was transferred into binary variable according to the cutoff point of 17.55 μmol/L, then HCY ≥17.55 μmol/L and < 17.55 μmol/L as a binary variable, together with preinfarct angina, CRP and NLR were tested by multiple logistic regression to decide the independent predictors of SR.