Work injuries in internal migrants to Alberta, Canada. Do workers' compensation records provide an unbiased estimate of risk?

Introduction It is not known whether out‐of‐province Canadians, who travel to Alberta for work, are at increased risk of occupational injury. Methods Workers' compensation board (WCB) claims in 2013 to 2015 for those injured in Alberta were extracted by home province. Denominator data, from Statistics Canada, indicated the numbers from Alberta and Newfoundland and Labrador (NL) employed in Alberta in 2012. Both datasets were stratified by...