期刊名称：The Open
Occupational Health & Safety Journal
电子版ISSN：1876-2166
出版年度：2010
卷号：2
页码：1-8
DOI：10.2174/1876216601002010001
出版社：Bentham open
摘要： Objectives: To estimate the incidence of compensated claims involving mild traumatic brain injury among Ontario
workers covered by the Workplace Safety & Insurance Board (WSIB) and to describe the number and duration of
days off work related to incident claims using workers compensation administrative data.
Methods: We used a population-based, historical cohort of 111,800 injured workers aged 20 or older with a claim to the
Ontario Workers' Safety and Insurance Board in 1998. We estimated the incidence as the rate of new mild traumatic brain
injury in the Ontario working population eligible for compensation by the WSIB. We described the number and duration
of disability days using an episodic and cumulative analysis of time on benefits over a two-year period (1997-98) determined
from administrative data.
Results: The annual incidence was 1.5 (95% CI: 1.3, 1.7) per 10,000 full-time equivalents. Eighty-seven percent of claimants
had a single episode of benefits with median duration of 11 days (95% CI: 10, 12). Fifty percent were off benefits after
17 days and 75% by 72 days.
Conclusions: Mild traumatic brain injury is disabling in the working population. Most work disability is short-term, but a
small proportion of claimants become chronically disabled and unable to work.
