Incidence and risk factors for psychiatric comorbidity among people newly diagnosed with cancer based on Korean national registry data.

Objective: The present study investigates the incidence of psychiatric disorders, related risk factors, and the use of mental health services among people newly diagnosed with one of five major cancers (stomach, liver, colorectal, lung, and breast cancer) based on national registry data from the National Health Insurance Service (NHIS) in the Korean population.

Methods: We collected data on people newly diagnosed with one of the five major cancers between 2005 and 2008 using the nationwide claims data and cancer registration files of the NHIS. We analyzed the data of those diagnosed with psychiatric disorders over a 5-year period, from 2004 to 2009.

The epidemiology of psychiatric disorders among women with breast cancer in South Korea: analysis of national registry data.

Objective: Population-based data on the epidemiology of psychiatric disorders in patients with breast cancer are lacking. Because the National Health Insurance (NHI) Program in South Korea is a compulsory social insurance system covering the entire Korean population, the NHI is a good source of information for epidemiological studies. In the present study, we examined the incidence of psychiatric disorders among Korean women newly diagnosed with breast cancer using the NHI Corporation (NHIC) database.