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References

The papers below describe the official design of each database and are the standard citations for it.

Data resource and cohort profiles

  • Cheol Seong, S., Kim, Y.-Y., Khang, Y.-H., Heon Park, J., Kang, H.-J., Lee, H., Do, C.-H., Song, J.-S., Hyon Bang, J., Ha, S., Lee, E.-J., and Ae Shin, S. (2017). Data Resource Profile: The National Health Information Database of the National Health Insurance Service in South Korea. International Journal of Epidemiology, 46(3), 799-800.
  • Lee, J., Lee, J. S., Park, S.-H., Shin, S. A., and Kim, K. (2017). Cohort Profile: The National Health Insurance Service-National Sample Cohort (NHIS-NSC), South Korea. International Journal of Epidemiology, 46(2), e15.
  • Seong, S. C., Kim, Y.-Y., Park, S. K., Khang, Y. H., Kim, H. C., Park, J. H., Kang, H.-J., Do, C.-H., Song, J.-S., Lee, E.-J., Ha, S., Shin, S. A., and Jeong, S.-L. (2017). Cohort profile: the National Health Insurance Service-National Health Screening Cohort (NHIS-HEALS) in Korea. BMJ Open, 7(9), e016640.
  • Kim, Y.-I., Kim, Y.-Y., Yoon, J. L., Won, C. W., Ha, S., Cho, K.-D., Park, B. R., Bae, S., Lee, E.-J., Park, S. Y., Choi, D.-W., Kim, S.-H., Shin, D. W., and Lee, J.-S. (2019). Cohort profile: National Health Insurance Service-Senior (NHIS-Senior) cohort in Korea. BMJ Open, 9(7), e024344.

To be checked

Author lists and page numbers were entered from memory and should be checked against the journal pages before the site is announced.

Official documentation

The NHIS distributes a user manual (사용자 매뉴얼) for each sample database, column layouts for the customized research DB, and guides to the application process through the NHISS portal. The site follows the versions below, and the sources and versions page lists superseded documents and the conflicts found between documents.

Database Document Version Date Release described
National Sample Cohort 표본코호트DB 사용자 매뉴얼 1.5 May 2026 2.2, 2002-2023
National Sample Cohort 표본코호트DB 레이아웃 Ver 1.5 May 2026 2.2, 2002-2023
Health Screening Cohort 건강검진코호트DB 사용자 매뉴얼 2.3 Not stated 2002-2023
Senior Cohort 노인코호트DB 사용자 매뉴얼 1.4 Not stated 2.0, 2002-2023
Low-Risk Sample Dataset 저위험 표본데이터셋 사용자 매뉴얼 Not stated Not stated 2014-2023
Customized Research DB 맞춤형 자료 제공 컬럼 레이아웃 and companion layouts Not stated September 10, 2026 2002-2024
Customized Research DB 맞춤형 자료 요청서 Not stated July 22, 2026 2002-2024
All databases 사용자매뉴얼1, 연구용DB 신규신청 방법 4.0 September 2024 Application procedure

The National Sample Cohort manual also comes with a file of summary statistics (표본코호트DB 통계표).