Comparison of cardiovascular risk factors among coronary artery bypass graft patients in 2010 and 2016: A single-center study in Guilan province, Iran

There has been a change in the risk factor profile of patients with coronary artery disease (CAD) in the western world. We sought to compare the risk factor profile of patients undergoing coronary artery bypass graft (CABG) surgery in northern part of Iran in 2010 and 2016. In a cross-sectional study, medical records of 296 CABG patients in 2010 and 500 patients in 2016 were collected from a referral university hospital in Guilan province, Iran. We compared the risk factor profile using chi-square test or independent t-test as needed in the two time points, 2010 and 2016. The age of CABG patients significantly decreased from 62.49 ± 8.05 to 58.09 ± 9.20 over time. The frequency of hypertension (HTN) (66.2% vs. 59.1%, P = 0.045), diabetes mellitus (DM) (51.8% vs. 43.6%, P = 0.025), smoking (35.6% vs. 28.0%, P = 0.028), and patients with multimorbidity (31.8% vs. 26.7%, P = 0.001) increased in the second period compared to the first period of study. Whereas, the prevalence of hypercholesterolemia and positive family history of coronary heart disease (CHD) remained stable over time (49.6% vs. 49.0%, P = 0.870; 10.5% vs. 11.1%, P = 0.810, respectively). We observed a dramatic increase in DM, HTN, and cigarette smoking as well as the multimorbidity prevalence in 2016 compared to 2010. Even with considering all study limitations, primary and secondary prevention program to decrease cardiovascular disease is required.