ObjectiveTo analyze the incidence and risk factors of abdominal aortic aneurysm (AAA) in elderly individuals with coronary heart disease (CHD). MethodsEighty-six CHD patients (CHD group) and 60 patients without CHD (control group) (both>65 years) were selected. All subjects underwent conventional echocardiographic examination to investigate the incidence of AAA. The risk factors of AAA in CHD patients were analyzed. ResultsAAA incidence in CHD group was significantly higher than that in control group (15.1% vs 3.3%; P<0.05). A logistic regression analysis showed that smoking (OR=4.79;P<0.01) and carotid artery stenosis (OR=3.29; P<0.05) were closely related to incidence of AAA,while diabetes was correlated negatively to incidence of AAA (OR=0.15; P<0.05). ConclusionElderly CHD patients have high incidence of AAA. CHD and AAA have some similar risk factors in elderly individuals.