The Crash Outcome Data Evaluation Systems data system focuses on retrospective population-based data computerized at the State level and include crash data reported by police, EMS transport data and emergency departments and hospital discharge data. CODES involve the linkage of person-specific crash data to injury data to generate outcome information for crash victims transported by EMS, treated in the emergency department and discharged or admitted to the hospital.
A type of variable replaced automatically with data; used in the Signup form, to prefill an E-mail, or to pass data to the approval and post denial web page
A popular method of associating textual values with numeric codes. Most important for classifying complex data in order to facilitate meaningful analysis. The most common coding framework in historical data (and contemporary data) applies to the classification and categorisation of occupations.