Journal article

Identifying mental health and substance use disorders using emergency department and hospital records: a population-based retrospective cohort study of diagnostic concordance and disease attribution.

Linwei Wang, Fahmida Homayra, Lindsay A Pearce, Dimitra Panagiotoglou, Rachael McKendry, Rolando Barrios, Craig Mitton, Bohdan Nosyk

BMJ Open | Published : 2019


OBJECTIVES: Administrative data are increasingly being used for surveillance and monitoring of mental health and substance use disorders (MHSUD) across Canada. However, the validity of the diagnostic codes specific to MHSUD is unknown in emergency departments (EDs). Our objective was to determine the concordance, and individual-level and hospital-level factors associated with concordance, between diagnosis codes assigned in ED and at discharge from hospital for MHSUD-related conditions. DESIGN: Population-based retrospective cohort study. SETTING: EDs and hospitals within Vancouver Coastal Health Authority (VCH), British Columbia, Canada. PARTICIPANTS: 16 926 individuals who were admitted in..

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