Introduction to Danish (nationwide) registers on health and social issues: structure, access, legislation, and archiving.

Danish registers contain information on many important health and social issues. Because all Danish citizens have a unique personal identification number, linkage at the individual level between these nationwide registers and other data sources is possible and feasible. In this paper we briefly introduce selected Danish registers and the data structure and requirements forgetting access to data at Statistics Denmark, which is the main provider of register data.

[The personal data act, clinical trials and data privacy. Rules for treatment of personal data in clinical trials and scientific research projects].

The Danish Act on Processing of Personal Data applies to all processing of data for the purpose of carrying out medical trials and other scientific or statistical studies. Prior to the commencement of the processing of data, a private controller, i.e.