I earned my Master degree in Economics from University of Ottawa in 2003 and completed my PhD in the School of Population and Public Health at the University of British Columbia in August 2013. I am working as a Health Economist at the Centre for Health Evaluation and Outcome Sciences. My primary research interests include measurement and valuation of work productivity loss, economic evaluation, and pharmaceutical policy
Postdoctoral Fellowship Award, Michael Smith Foundation for Health Research;
Doctoral Research Award in Public Health, Canadian Institutes of Health Research;
Graduate Training Award, Canadian Arthritis Network
Zhang W, Islam N, Ma C, Anis AH. Systematic review of cost-effectiveness analyses of treatments for psoriasis. Pharmacoeconomics. 2014 Dec 5. [Epub ahead of print]
Zhang W, Anis AH. Health-related productivity loss: NICE to recognize soon, good to discuss now. Pharmacoeconomics. 2014 May;32(5):425-7.
Sadatsafavi M, Rousseau R, Chen W, Zhang W, Lynd L, FitzGerald M; the Economic Burden of Asthma (EBA) study team. The preventable burden of productivity loss due to suboptimal asthma control: a population-based study. Chest. 2013 Dec 12. doi: 10.1378/chest.13-1619. [Epub ahead of print] 2014 Apr;145(4):787-93.
Li X, Zhang W. The Impacts of Health Insurance on Health Care Utilization Among Older People in China. Social Science & Medicine. 2013;85:59-65.
Zhang W, Chiu JA, Bansback N, Anis AH. An update on the measurement of productivity losses due to rheumatoid diseases. Best Pract Res Clin Rheumatol. 2012;26(5):585-97.
Zhang W, Bansback N, Boonen A, Severens JL, Anis AH. Development of a composite questionnaire, the Valuation Of Lost Productivity (VOLP), to value productivity losses: application in rheumatoid arthritis. Value in Health. 2012 Jan;15(1):46-54. Epub 2011 Oct 1.
Nikiphorou E, Guh D, Bansback N, Zhang W, Dixey J , Williams P, Young A. Work disability rates in RA. Results from an inception cohort with 24 years follow-up. Rheumatology. 2012;51(2):385-92. Epub 2012 Jan 11.
Bansback N, Zhang W, Walsh D, Kiely P, Williams R, Guh D, Anis A, Young A. Factors associated with absenteeism, presenteeism and activity impairment in patients in the first years of rheumatoid arthritis. Rheumatology. 2012;51(2):375-84. Epub 2011 Dec 16.
Tang K, Escorpizo R, Beaton DE, Bombardier C, Lacaille D, Zhang W, Anis AH, Boonen A, Verstappen SM, Buchbinder R, Osborne RH, Fautrel B, Gignac MA, and Tugwell PS. Measuring the impact of arthritis on worker productivity: perspectives, methodologic issues, and contextual factors. Journal of Rheumatology. 2011;38(8):1776-90.
Zhang W, Sun H, Emery P, Sato R, Singh A, Freundlich B, Anis A. Does achieving clinical response prevent work stoppage or work absence among employed patients with early rheumatoid arthritis? Rheumatology. 2012;51(2):270-4.Epub 2011 Jul 7.
Zhang W, Bansback N, Kopec J, Anis A. Measuring time input loss among patients with rheumatoid arthritis: validity and reliability of the Valuation of Lost Productivity questionnaire. Journal of Occupational and Environmental Medicine. 2011;53:530-6. Epub 2011 Apr 19.
Zhang W, Anis AH. The economic burden of rheumatoid arthritis: beyond health care costs. Clinical Rheumatology. 2011;30 Suppl 1:S25-32. Epub 2011 Mar 2.
Zhang W, Bansback N, Anis AH. Measuring and valuing productivity loss due to poor health: A critical review. Social Science & Medicine. 2011;72:185-92. Epub 2010 Nov 18.
Zhang W, Bansback N, Boonen A, Young A, Singh A, Anis AH. Validity of Work Productivity and Activity Impairment questionnaire – general health version (WPAI-GH) in patients with rheumatoid arthritis. Arthritis Research Therapy. 2010;12(5):R177. Epub 2010 Sep 22.
Zhang W, Koehoorn M, Anis AH. Work productivity among employed Canadians with arthritis. Journal of Occupational and Environmental Medicine. 2010;52:872-7.
Zhang W, Gignac MAM, Beaton D, Tang K, Anis AH, on behalf of the Canadian Arthritis Network Work Productivity Group. Productivity loss due to presenteeism among patients with arthritis: estimates from 4 instruments. Journal of Rheumatology. 2010;37:1805-14. Epub 2010 Jul 1.
Tang K, Beaton DE, Gignac MAM, Lacaille D, Zhang W, Bombardier C, the Canadian Arthritis Network Work Productivity Group. The Work Instability Scale for Rheumatoid Arthritis (RA-WIS) predicts arthritis-related work transitions in patients with osteoarthritis or rheumatoid arthritis within 12 months. Arthritis Care & Research. 2010;62:1578-87. Epub 2010 Jun 2.
Tang K, Beaton DE, Lacaille D, Gignac MAM, Zhang W, Anis AH, Bombardier C, Canadian Arthritis Network Work Productivity Group. The Work Instability Scale for Rheumatoid Arthritis (RA-WIS): Does it work in osteoarthritis? Quality of Life Research. 2010;19:1057-68. Epub 2010 Apr 25.
Gray D, Armstrong CD, Dahrouge S, Hogg W, Zhang W. Cost-effectiveness of Anticipatory and Preventive multidisciplinary Team Care for complex patients: Evidence from a randomized controlled trial. Canadian Family Physician. 2010;56:e20-e29.
Hogg W, Lemelin J, Dahrouge S, Liddy C, Armstrong CD, Legault F, Dalziel B, Zhang W. Randomized controlled trial of anticipatory and preventive multidisciplinary team care: for complex patients in a community-based primary care setting. Canadian Family Physician. 2009;55:e76-e85.
Zhang W, Anis AH. Health insurance and out-of-pocket expenses. Arthritis and Rheumatism. 2009;61:1467-9.
Beaton D, Bombardier C, Escorpizo R, Zhang W, Lacaille D, Boonen A, Osborne RH, Anis AH, Strand CV, Tugwell PS. Measuring worker productivity: frameworks and measures. Journal of Rheumatology. 2009;36:2100-9.
Anis A, Zhang W, Emery P, Sun H, Singh A, Freundlich B, Sato R. The effect of etanercept on work productivity in patients with early active rheumatoid arthritis: results from the COMET Study. Rheumatology. 2009;48:1283-9. Epub 2009 Aug 18.
Anis AH, Zhang W, Bansback N, Guh DP, Amarsi Z, Birmingham CL. Obesity and overweight in Canada: An updated cost-of-illness study. Obesity Reviews. 2010;11:31-40. Epub 2009 Apr 21.
Guh DP, Zhang W, Bansback N, Amarsi Z, Birmingham CL, Anis AH. The incidence of co-morbidities related to obesity and overweight: A systematic review and meta-analysis. BMC Public Health. 2009;9:88.
Zhang W, Bansbank N, Guh D, Li X, Nosyk B, Marra CA, Anis AH. Short-term influence of adalimumab on work productivity outcomes in patients with rheumatoid arthritis. Journal of Rheumatology. 2008;35:1729-36. Epub 2008 Aug 1.
Hogg W, Gray D, Huston P, Zhang W. The costs of preventing the spread of respiratory infection in family physician offices: a threshold analysis. BMC Health Services Research. 2007;7:181.
Lemelin J, Hogg W, Dahrouge S, Armstrong CD, Martin CM, Zhang W, Dusseault J, Parsons-Nicota J, Saginur R, Viner G. Patient, informal caregiver and care provider acceptance of a hospital in the home program in Ontario, Canada. BMC Health Services Research. 2007;7:130.
Productivity loss measurement and valuation
Systematic reviews and meta-analyses