About the Authors

Natalie Henrich

nhenrich@cheos.ubc.ca

Affiliations Centre for Health Evaluation and Outcome Sciences, Providence Health Care, Vancouver, Canada, School of Population and Public Health, University of British Columbia, Vancouver, Canada

Bev Holmes

Affiliations School of Population and Public Health, University of British Columbia, Vancouver, Canada, Michael Smith Foundation for Health Research, Vancouver, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: NH. Wrote the paper: NH. Conceptualized and designed the study: NH BH. Critical reading: BH.