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Trial by fire: a multivariate examination of the relation between job tenure and work injuries
  1. F C Breslin1,2,
  2. P Smith1,3
  1. 1Institute for Work & Health, Toronto, Canada
  2. 2Department of Public Health Sciences, University of Toronto, Canada
  3. 3Institute for Medical Science, University of Toronto, Canada
  1. Correspondence to:
 Dr F C Breslin
 481 University Avenue, Suite 800, Toronto, Ontario M5G 2E9, Canada; cbreslin{at}


Aims: This study examined the relation between months on the job and lost-time claim rates, with a particular focus on age related differences.

Methods: Workers’ compensation records and labour force survey data were used to compute claim rates per 1000 full time equivalents. To adjust for potential confounding, multivariate analyses included age, sex, occupation, and industry, as well job tenure as predictors of claim rates.

Results: At any age, the claim rates decline as time on the job increases. For example, workers in the first month on the job were over four times more likely to have a lost-time claim than workers with over one year in their current job. The job tenure injury associations were stronger among males, the goods industry, manual occupations, and older adult workers.

Conclusions: The present results suggest that all worker subgroups examined show increased risk when new on the job. Recommendations for improving this situation include earlier training, starting workers in low hazard conditions, reducing job turnover rates in firms, and improved monitoring of hazard exposures that new workers encounter.

  • adolescents
  • age differences
  • job tenure
  • occupational injuries
  • risk factors

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