It wasn't relevant. The purpose of my research was to determine what happened over the 12 months after the occupational injury, from the point at which the people were injured. I did not have to look at what their status was before the injury occurred. We simply wanted to know whether people were born in Canada or outside Canada. In epidemiology, we use control groups. We asked the non-Canadian workers how long they had been in Canada, so we could determine the extent to which the fact that they knew their rights as a citizen and a worker since they arrived had an effect.
On April 10th, 2008. See this statement in context.