Fig. 1

The process of sample recruitment. Coronary heart diseases include coronary atherosclerosis, coronary artery bypass grafting, stent surgery and ischemic infarction; Immune diseases included inflammatory bowel diseases and systemic lupus erythematosus. HbA1c glycated hemoglobin A1c, IFG impaired fasting glucose, FBG fasting blood glucose, CAP carotid artery plaque