Comparison between coronary plaque 64-slice spiral CT characteristics and risk factors of coronary artery disease patients in Chinese Han population and Mongolian

Objective: To compare the coronary atherosclerotic plaque 64-slice spiral CT characteristics and the risk factors of Han (in Inner Mongolia) and Mongolian coronary artery disease patients.

Methods: The plaques of 126 Mongolian and 269 Han patients were analyzed by 64-slice spiral CT coronary angiography. Their gender, age, height, body mass, the history of hypertension, diabetes, smoking and family diseases, the levels of triglycerides (TG), total cholesterol (TC), high density lipoprotein cholesterol (HDL-C) and low density lipoprotein cholesterol (LDL-C) were compared.

Results: The incidence of plaques (P < 0.05), the proportion of plaques in the circumflex branch (P < 0.05), the proportion of medium-severe lumen stenosis induced by plaques (P < 0.05), and the proportion of obstructive plaque involved multi-branch (P < 0.05) of the Mongolian patients were higher. The plaque compositions of the two groups did not differ significantly (P > 0.05). The body mass index of the Mongolian patients was higher (P < 0.05). The hypertension, diabetes, smoking history, TG, TC, HDL-C and LDL-C of the two groups did not differ significantly (P > 0.05).

Conclusion: The higher incidence of coronary atherosclerotic plaques and the more severe lesions of the Mongolian patients may be related to their higher body mass index.