Register-based research is research where register data are used. A study can rely solely on register data or register data can be used to supplement other datasets (e.g. clinical data or data obtained by a questionnaire survey). The special characteristic of register data is that the data have not been gathered for research purposes and so a number of unique features distinguish register-based research from other quantitative research.
On these pages ReTki displays guidelines and tips for carrying out register-based research. You can find a flow chart depicting the research process, a guide for drawing up a research plan, information on combining different data sources, and an example of a register-based research process.
In order to use register data you must obtain a permit to use the data for research. Confidentiality issues and the process of obtaining a permit are discussed in more detail on the pages Data protection and permission for data access.