Statistical estimates of absenteeism attributable to seasonal and pandemic influenza from the Canadian Labour Force Survey
2011

Estimating Absenteeism Due to Influenza in Canada

Sample size: 54000 publication 10 minutes Evidence: moderate

Author Information

Author(s): Dena L Schanzer, Hui Zheng, Jason Gilmore

Primary Institution: Public Health Agency of Canada

Hypothesis

The study aimed to estimate absenteeism rates and hours lost due to seasonal influenza and compare these with estimates from the H1N1 pandemic waves.

Conclusion

Absenteeism rates for the 2009 pandemic were similar to those for seasonal influenza, but employees took more time off due to the pandemic strain.

Supporting Evidence

  • Absenteeism rates due to seasonal influenza averaged 12% over the 1997/98 to 2008/09 seasons.
  • Hours lost due to the H1N1/09 pandemic strain were 0.2% of potential hours worked annually.
  • Employees took an average of 14 hours off for seasonal influenza and 25 hours for the pandemic strain.

Takeaway

The study found that many people miss work because of the flu, and during the pandemic, they missed even more time than usual.

Methodology

Absenteeism rates were modeled using data from Statistics Canada's Labour Force Survey, focusing on hours lost due to illness from 1998 to 2009.

Potential Biases

Potential bias due to reliance on self-reported data and the challenge of distinguishing influenza from other respiratory illnesses.

Limitations

The study did not have sufficient statistical power to assess the effects of various employment characteristics on absenteeism rates.

Participant Demographics

Employed persons aged 15 and over in Canada.

Statistical Information

P-Value

0.08

Confidence Interval

95% CI: 0.06-0.10

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1471-2334-11-90

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