Study Areas

NEW - Caregivers

VOLP has been adapted to measure time spent on caregiving responsibilities and the related work productivity loss among caregivers. Caregivers refer to individuals who provide care to family and friends with health problems. The project was funded by the BC SUPPORT Unit Methods Cluster Project Award [HESM – 206].

Gelfand A, Sou J, Sawatzky R, Prescott K, Pearce A, Anis AH, Lee C, Zhang W. Valuation of lost productivity in caregivers: A validation study. Frontiers in Psychology. 2021;12:727871. doi:10.3389/fpsyg.2021.727871


Zhang W, Bansback N, Sun H, Pedersen R, Kotak S, Anis AH. Estimating the monetary value of the annual productivity gained in patients with early rheumatoid arthritis receiving etanercept plus methotrexate: interim results from the PRIZE study. RMD Open. 2015;1(1):e000042. doi:10.1136/rmdopen-2014-000042

Zhang W, Bansback N, Sun H, Pedersen R, Kotak S, Anis AH. Impact of etanercept tapering on work productivity in patients with early rheumatoid arthritis: results from the PRIZE study. RMD Open. 2016;2(2):e000222. doi:10.1136/rmdopen-2015-000222


Sadatsafavi M, Rousseau R, Chen W, et al. The preventable burden of productivity loss due to suboptimal asthma control: a population-based study. Chest. 2014;145(4):787-793. doi:10.1378/chest.13-1619

Multiple Sclerosis

Rodriguez EL, Zhang W, Khakban A, Patten S, Traboulsee A, Oh J, Kolind S, Prat A, Tam R, Lynd LD. Productivity loss among people with early multiple sclerosis. A Canadian study. Multiple Sclerosis Journal. 2022 Feb 9;13524585211069070. doi: 10.1177/13524585211069070

Systemic Autoimmune Rheumatic Disease

McCormick N, Reimer K, Famouri A, Marra CA, Aviña-Zubieta JA. Filling the gaps in SARDs research: collection and linkage of administrative health data and self-reported survey data for a general population-based cohort of individuals with and without diagnoses of systemic autoimmune rheumatic disease (SARDs) from British Columbia, Canada. BMJ Open. 2017;7(6):e013977. doi:10.1136/bmjopen-2016-013977

McCormick N, Marra CA, Sadatsafavi M, Kopec JA, Aviña‐Zubieta JA. Excess Productivity Costs of Systemic Lupus Erythematosus, Systemic Sclerosis, and Sjögren’s Syndrome: A General Population–Based Study. Arthritis Care & Research. 2019;71(1):142-154. doi:10.1002/acr.23573

Cardiovascular Disease and Risk

Zhang W, Li KH, Gobis B, Zed PJ, Lynd LD. Work Productivity Losses and Associated Risk Factors Among University Employees in the CAMMPUS Wellness Program. Journal of Occupational and Environmental Medicine. 2020;62(1):25-29. doi:10.1097/JOM.0000000000001734