title: Unusual job activities as a risk factor for occupational injuries.
abstract: BACKGROUND
  Based upon our clinical observation, many job-related injuries occur as a consequence of workers performing a task or engaging in an activity for which they have not been trained.
  
  
  METHODS
  A case-crossover study was used to evaluate unusual job tasks, unusual tools and unusual work locations as triggers for occupational injuries. Data on work activities on the day of the injury and 7 days prior to injury were collected via in-person interview.
  
  
  RESULTS
  All the 33 subjects enrolled were male, 23 were white and 10 were black, with a mean age of 34.9 years. The most common mechanisms of injury were falls and burns. The most common injuries were fractures and closed head injuries. Unusual job tasks [odds ratio (OR) 27.0, 95% confidence interval (CI) 3.1-235.3] and unusual tools (OR 13.3, 95% CI 1.4-125.4) were associated with the injury.
  
  
  CONCLUSIONS
  Workers should be extra cautious and they should be provided with training for new tasks and new tools.
authors.affiliation: Section for Trauma, Burns, and Surgical Critical Care, Division of General Surgery, Department of Surgery, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA. mcgwin@uab.edu
authors.forename: Gerald
authors.initials: G
authors.lastname: McGwin
authors.forename: Allison J
authors.initials: AJ
authors.lastname: Taylor
authors.forename: Paul A
authors.initials: PA
authors.lastname: MacLennan
authors.forename: Loring W
authors.initials: LW
authors.lastname: Rue
mesh_terms: D000062:Accidents, Occupational; D000328:Adult; D018592:Cross-Over Studies; D005240:Feasibility Studies; D006801:Humans; D008297:Male; D011361:Professional Competence; D012307:Risk Factors; D014947:Wounds and Injuries / Q000209:etiology*