Recording Cyclist Crashes and Long-term Injury Consequences by New Smart Tools (ReCyCLIST). Work Package 4: Long-term Consequences of Cyclist Injuries

There is a lack of knowledge about the extent of bicycle injuries in Norway. Among other things, a significant underreporting of bicycle injuries has been found in the official road traffic accident statistics based on police-registered accidents. Furthermore, there is a lack of knowledge about the long-term consequences of serious bicycle injuries. The main purpose of this project is to generate new knowledge about the consequences of bicycle injuries for later disability, employment status and use of prescribed drugs. In addition, the investigators want to study whether such long-term consequences vary according to demographic and socioeconomic characteristics, as well as to assess the degree of overlap between bicycle injuries registered in the official road traffic accident statistics and bicycle injuries registered in the health service, including an assessment of the severity of the injury. The investigators will use a retrospective analysis where a population-based dataset from the National Population Register is linked with information on injured cyclists from Statistics Norway's database on police-reported road traffic accidents, the Norwegian Patient Register, the National Trauma Registry and the Norwegian Cause of Death Registry. In order to study the long-term consequences of bicycle injuries, the investigators will also compile information on social security benefits and employment from Statistics Norway's historical events database (FD-Trygd) and the use of prescribed drugs from the Norwegian Prescribed Drug Registry. The investigators will also collect information on income and educational attainment from registers in Statistics Norway. The project will contribute to increased knowledge about the societal and individual burden of bicycle injuries, knowledge that is crucial for prioritizing and implementing necessary preventive measures.