This study used Korean National Health Insurance Service-National Health Screening Cohort of 48,438 people with diabetes to investigate the association of body mass index with incident major adverse cardiovascular events (MACE) and all-cause mortality. In people with diabetes, underweight people had a higher risk for all-cause mortality, whereas overweight or obese people had a lower risk for MACE and all-cause mortality than people with a normal weight.

In this article, we discuss the prevalence of obesity and abdominal obesity and related problems (in particular, T2DM, HTN, dyslipidemia, myocardiac infarction and ischemic stroke) according to the 2017 Obesity Fact Sheet, based on the National Health Insurance Service Health Checkup data from 2006 to 2015.