[Association between body mass index and coronary heart disease in Qingdao: a prospective study].

To analyze the association between body mass index (BMI) and coronary heart disease. The data for the present study were from the prospective cohort study of China Kadoorie Biobank (CKB) in Qingdao, a total of 33 355 participants aged 30-79 years were included in the study. Cox regression analyses were performed to evaluate the association between BMI and coronary heart disease. During the follow-up for an average 9.2 years, a total of 2 712 cases of ischemic heart disease (IHD) and 420 cases of major coronary events (MCE) were found. Multivariate Cox regression analysis showed that, compared with participants with normal BMI, the participants who were overweight had a 41% and 87% higher risk of IHD and MCE, the adjusted were 1.41 (95%: 1.27-1.56) and 1.87 (95%: 1.43-2.44), respectively. The participants who were obesity had 91% and 143% higher risk of IHD and MCE, the adjusted were 1.91 (95%: 1.72-2.13) and 2.43 (95%: 1.82-3.24), respectively. Overweight and obesity might increase the risk for IHD and MCE.