Abstract The Korean National Health Information Database (NHID) contains nationwide
claims data, including sociodemographic data, health care utilization, health screening data …

Recently, medical research using big data has become very popular, and its value has
become increasingly recognized. The Korean National Health Information Database (NHID) …

Polypharmacy is a growing and major public health issue, particularly in the geriatric
population. This study aimed to examine the association between polypharmacy and the risk …

Background An integrated care approach might be of benefit for clinical outcomes of patients
with atrial fibrillation (AF). This study evaluated whether compliance with the Atrial fibrillation …

Background: Variability in metabolic parameters, such as fasting blood glucose and
cholesterol concentrations, blood pressure, and body weight can affect health outcomes. We …

Aims A high visit-to-visit variability in cholesterol levels has been suggested to be an
independent predictor of major adverse cardiovascular events in patients with coronary …

Importance Diagnostic low-dose ionizing radiation has great medical benefits; however, its
increasing use has raised concerns about possible cancer risks. Objective To examine the …

Background The prevalence of metabolic syndrome has markedly increased worldwide.
However, studies in the United States show that it has remained stable or slightly declined in …

Abstract Background and objectives The Korean National Health Insurance Service (NHIS)
database has been widely used for cardiovascular research. We validated the primary …

The prevalence of obesity is rapidly increasing worldwide. Obesity should not be understood
only as the accumulation of fat in the body, but instead as a phenomenon that exerts …