epiH Search


Epidemiol Health > Accepted Articles
Epidemiology and Health 2018;e2018062.
DOI: https://doi.org/10.4178/epih.e2018062    [Accepted] Published online December 27, 2018.
Data Profile: The National Health Insurance Research Database (NHIRD) of Taiwan
Liang-yu Lin1,2  , Charlotte Warren-Gash1  , Liam Smeeth1  , Pau-Chung Chen2,3,4,5,6 
1Department of Non-communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom
2Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University, Taipei, Taiwan
3Department of Environmental and Occupational Medicine, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan
4Department of Public Health, National Taiwan University College of Public Health, Taipei, Taiwan
5Innovation and Policy Centre for Population Health and Sustainable Environment, Taipei, Taiwan
6Office of Occupational Safety and Health, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan
Correspondence  Pau-Chung Chen ,Tel: 886-2-3366-8088, Fax: +886-2-3366-8734, Email: pchen@ntu.edu.tw
Received: November 15, 2018  Accepted after revision: December 27, 2018
Electronic health records (EHRs) can provide researchers with extraordinary opportunities for population based research. The National Health Insurance system of Taiwan was established in 1995 and covers more than 99.6% of the Taiwanese population; this system’s claims data are released as the National Health Insurance Research Database (NHIRD). All data from primary outpatient departments and inpatient hospital care settings after 2000 are included in this database. After a change and update in 2016, the NHIRD is maintained and regulated by the Data Science Centre of the Ministry of Health and Welfare of Taiwan. Datasets for approved research are released in three forms: sampling datasets comprising two million subjects, disease-specific datasets, and full population datasets. These datasets are de-identified and contain basic demographic information, disease diagnoses, prescriptions, operations, and investigations. Data can be linked to governmental surveys or other research datasets. While only a small number of validation studies with small sample sizes have been undertaken, they generally report positive predictive values of over 70% across different diagnoses. Currently, patients cannot opt out of inclusion in the database, though this requirement is under review. In conclusion, the NHIRD is a large, powerful data source for biomedical research.
Keywords: database; electronic health records; information storage and retrieval; National Health Insurance Research Database (NHIR); Taiwan
Share :
METRICS Graph View
  • 0 Crossref
  • 0 Scopus
  • 232 View
  • 29 Download


Browse all articles >

Editorial Office
Graduate School of Cancer Science and Policy, National Cancer Center
323 Ilsan-ro, Ilsandong-gu, Goyang 10408, Korea
TEL: +82-2-745-0662   FAX: +82-2-764-8328    E-mail: enh0662@gmail.com

Copyright © 2019 by Korean Society of Epidemiology. All rights reserved.

Developed in M2community

Close layer
prev next