An evaluation of the association between changes to job protection during illness leave and illness absence behaviour
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Background
Despite a growing body of research on sick leave policies, there remains a significant gap in research concerning job protections during illness leaves, which is critical in Canada since several provinces are considering or passing job-protected leave expansions. We examined three major job-protected leave expansions, Quebec (2003), Manitoba (2016), and Alberta (2018).
Methods
We used the Canadian Labour Force Survey data spanning from 1998 to 2022. Using a difference-in-difference approach, we examined 5-year changes in leave behaviour before and after expansions in job-protected leave in the three provinces compared to changes in provinces with less than 2 weeks of job-protected leave. We analyzed the prevalence, duration, and distribution of illness/disability absences using ordinary least squares and linear probability models.
Results
We found that expanding job-protected leave in Quebec was associated with decreases in the overall length of leave by 2.2 (95% CI: -3.2 to -1.5; P<0.001) weeks or 14.0% relative reduction. Similarly, expansions in Alberta and Manitoba were associated with decreases in the overall length of leave by 1.2 (95% CI: -2.1 to -0.3; P=0.016) weeks or 7.4% relative reduction. Results for absence prevalence were mixed (small increase (Quebec) (p<0.05), no significant change (Alberta-Manitoba) (p>0.05). Both expansions were associated with significant increases in absence duration consistent with the policy (i.e., 3-17-week leaves) (p<0.05).
Conclusions
Our results suggest that job-protected leave expansion may influence leave behaviour even in the presence of protections provided by human rights laws and without imposing large additional costs for employers or governments.
