Erratum

After publication of the original article [1], it came to the authors’ attention that the affiliations were incorrect.

Affiliation 1 (Department of Family Medicine, University of Alberta) incorrectly contained ‘Clinical Research Unit’, and the postcode was incorrect. Affiliation 5 (Alberta Diabetes Institute, University of Alberta) was mistakenly included as ‘Department of Medicine, Obesity Research & Management, University of Alberta’.

In addition, in the list of authors, Jeffrey A. Johnson should be affiliated to institutions 2 and 5, and Arya. A. Sharma should have been affiliation to institutions 3 and 5.

The list of authors and affiliations is correct in this erratum. The ‘Author details’ section of the article should have read as follows:

Author details

1Department of Family Medicine, University of Alberta, Edmonton, AB, Canada T6G 2T4. 2School of Public Health, University of Alberta, Edmonton, AB, Canada T6G 2E3. 3Department of Medicine, University of Alberta, Edmonton, AB, Canada T6G 2E1. 4Department of Anthropology, University of Alberta, Edmonton, AB, CanadaT6G 2H4. 5Alberta Diabetes Institute, University of Alberta, Edmonton, AB, Canada T6G 2T9.