Table 1 Inclusion and exclusion criteria of participants

1) over 18 years old;

2) angina;

3) silent myocardial ischemia;

4) all patients undergoing invasive coronary angiography.

1) acute myocardial infarction;

2) severe hepatic or renal dysfunction;

3) pulmonary heart diseases;

4) valvular heart diseases;

5) infective endocarditis;

6) malignant tumors;

7) hyperthyroidism.