SO YOU WANT TO LINK YOUR STATE DATA: PREPARATION FOR DATA LINKAGE BASED ON THE CRASH OUTCOME DATA EVALUATION SYSTEM (CODES)

State data are a valuable source of information that can enhance decision making for highway safety and injury control activities. These data are usually collected to meet the specific needs of the collection agency: police reported crash data, emergency medical services data, emergency department data, or inpatient data. Each of these data sets alone lacks the comprehensive information required to support highway safety and injury control activities. By linking these data, population-based, computerized statewide data describing the outcome for all crash victims can be generated. This report focuses on how to obtain and prepare state data for linkage. It describes the linkage process but does not include instructions for implementing the linkage software. It provides examples of how to use the linked data analytically. The instructions are presented as a series of steps to be followed sequentially for best results. The 22 steps are grouped into five sections. Section one describes the data, equipment, and personnel resources needed for linkage and the obstacles which may occur. Sections two and three discuss file preparation and selecting the cases for linkage. The actual linkage begins with section four which describes the concepts and phases of the linkage process. Finally, section five describes the output, the validation process, and several applications for the linked data.

• Record URL:
  • https://doi.org/10.21949/1403402
• 
• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/4424
• Corporate Authors:

  National Association of Governors' Highway Safety Representatives

  750 First Street, NE, Suite 720
  Washington, DC  United States  20002

  National Highway Traffic Safety Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Johnson, S W
• Publication Date: 1996-7

Language

• English

Media Info

• Features: Appendices;
• Pagination: 61 p.

Subject/Index Terms

• TRT Terms: Applications; Crash data; Emergency medical services; Highway safety; Hospital emergency rooms; Information processing; Information, data, and knowledge; Police reports; States; Validation
• Identifier Terms: Crash Outcome Data Evaluation System
• Uncontrolled Terms: Data linkage; Linked data
• Old TRIS Terms: Inpatient data
• Subject Areas: Data and Information Technology; Highways; Research; Safety and Human Factors; Security and Emergencies; I81: Accident Statistics;

Filing Info

• Accession Number: 00736054
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: HS-808 426, NHTSA Technical Report
• Contract Numbers: DTNH22-94-H-07364
• Files: HSL, NTL, TRIS, USDOT
• Created Date: Apr 29 1997 12:00AM