The Utility of Different Data Standards to Document Adverse Drug Event Symptoms and Diagnoses: Mixed Methods Study

Erina Chan   ^{1, 2 *} , BSc, ACPR ;   Serena S Small   ^{1, 3 *} , MA ;   Maeve E Wickham   ^{1, 4 *} , MSc ;   Vicki Cheng   ^{5 *} , PharmD ;   Ellen Balka   ^{1, 6 *} , PhD ;   Corinne M Hohl   ^{1, 3, 7 *} , MD, MHSc

¹ Centre for Clinical Epidemiology and Evaluation, Vancouver Coastal Health Research Institute, Vancouver, BC, Canada

² Vancouver General Hospital Pharmacy Department, Vancouver, BC, Canada

³ Department of Emergency Medicine, University of British Columbia, Vancouver, BC, Canada

⁴ School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada

⁵ Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada

⁶ School of Communication, Simon Fraser University, Burnaby, BC, Canada

⁷ Vancouver General Hospital Emergency Department, Vancouver, BC, Canada

*all authors contributed equally