| One of the largest claims datasets (≥52 million people) |
Not designed for research purposes |
| Health screening information containing detailed lifestyle questionnaires, laboratory results, and anthropometric measurements |
Not all eligible subjects undergo regular health screening |
| Customized cohort datasets, such as National Health Insurance Service-National Sample Cohort |
Laboratory test limited to basics |
| Mortality data from Statistics Korea |
Not available on data not covered by the National Health Insurance system, such as cosmetic procedures, over-the-counter medicines, and uninsured new drugs or treatment |
| Resident registration number for tracking the outcomes |
Challenge for researchers due to a large number of variables and complicated administrative process |
| Rare intractable disease program |
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