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Published on: February 16, 2011
Use of statewide electronic emergency department data for occupational injury surveillance: a feasibility study in
Letitia K Davis1, Phillip R Hunt, H Holly Hackman
1Massachusetts Department of Public Health, Occupational Health Surveillance Program, 250 Washington St., Boston, MA 02108, USA. letitia.davis@state.ma.us
Background:
Statewide datasets of emergency department (ED) visits may be useful for occupational injury surveillance. Using data from 12 hospitals, we evaluated two indicators of work-relatedness in reported ED data and the availability of employment information in medical charts.
Methods:
Workers' compensation as payer and/or "yes" in an injury-at-work field were used to define probable work-related (PWR) injury visits in the Massachusetts ED dataset. Charts were reviewed for a sample of 1,002 PWR and 250 probable nonwork-related (PNWR) cases.
Results:
Using chart information as the gold standard, indicators of work-relatedness had a sensitivity of 82%, specificity of 97%, and predictive value positive of 86%. Employer name was in charts for 89% of PWR and 42% of PNWR cases. Occupation was available for 34% of PWR cases.
Conclusion:
Electronic ED data are useful for state surveillance of occupational injuries. Improvements in attribution of work-relatedness and collection of available employer identifiers and occupational information would enhance its usefulness. The performance of indicators of work-relatedness in ED datasets should be examined in different states.
