Cohort Profile: The Copenhagen School Health Records Register

Abstract
The Copenhagen School Health Records Register (CSHRR) is a database of health examination information on more than 350 000 schoolchildren who ever attended school in the central municipality of the capital city of Denmark. For longer than 100 years, school-based health care has been provided to children in Copenhagen,1 and from the 1930s, the material was systematically recorded on individual health cards. The CSHRR results from the retrieval and computerization of data from every health card. Information from the register can be used on its own and it can also be linked to a variety of health registers and other cohort studies in Denmark.