View GRID portal at http://ccrd.nhg/crd/

Note: To enter GRID portal,  NHG Intranet access and GRID user ID is required

About GRID

Application Guidelines

Contact Information

About GRID

The Office of Biomedical Research (OBR) has developed an online web based database system, GRID (General Research Inpatient Database).  This online database allows researchers to access de-identified patient records in order to either determine whether the sample size would justify for initiating a research project, or prioritize the areas of research project to be carried out first.

GRID contains inpatient data extracted from NUH electronic medical records system.  GRID allows online search for all NUH inpatients, based on a set of search criteria selected by the researchers.  The database gives de-identified information on age, sex, clinical diagnostics and procedures done according to data entered on the inpatient discharge summary forms. Clinical diagnosis and procedures are based on ICD-9 and DRG classification. The databases are updated periodically to include the latest patient records. 

The data can be searched online by the following criteria:

1. Specialty
2. Sex
3. Age
4. DRG Description
5. Principal diagnosis
6. Secondary diagnosis
7. Date of admission
8. Listing by individual subject

Users have a selection of 23 specialities and the entire list of ICD-9 options.

Application Guidelines

Researchers who need to access the database must first sign a non-disclosure application form. For patient confidentiality, users should not attempt to back trace these records to the patients.  Users must take appropriate precaution to ensure confidentiality of all data retrieved from the databases.  More details are available in the User ID application Procedure & Guidelines. For more information, contact the GRID administrator.

Contact Information