Psychiatric Services
Volume 62, Issue 9, 2011, Pages 1026-1031

Ethnic disparities in antipsychotic drug use in British Columbia: A cross-sectional retrospective study (Article)

Puyat J.H.* , Hanley G.E. , Cunningham C.M. , Law M.R. , Wong S.T. , Sutherland J.M. , Morgan S.G.
  • a Centre for Health Services and Policy Research, School of Population and Public Health, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
  • b Centre for Health Services and Policy Research, School of Population and Public Health, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
  • c Centre for Health Services and Policy Research, School of Population and Public Health, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
  • d Centre for Health Services and Policy Research, School of Population and Public Health, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
  • e Centre for Health Services and Policy Research, School of Population and Public Health, University of British Columbia, Vancouver, BC V6T 1Z3, Canada, Faculty of Nursing, University of British Columbia, Canada
  • f Centre for Health Services and Policy Research, School of Population and Public Health, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
  • g Centre for Health Services and Policy Research, School of Population and Public Health, University of British Columbia, Vancouver, BC V6T 1Z3, Canada

Abstract

Objective: This study examined ethnic disparities in antipsychotic therapy in a population with significant Asian representation. Methods: Using a cross-sectional retrospective study design, self-reported ethnicity data pooled from three cycles of the Canadian Community Health Survey were linked to 2005 administrative data on physician, hospital, and pharmaceutical use in British Columbia, Canada. Logistic regression was used to model the association between ethnicity and the likelihood of filling one or more prescriptions for any antipsychotic, with controls for sex, age, residence, immigrant status, income, health status, and diagnoses of schizophrenia, bipolar disorder, depression, and dementia. Results: Of the 27,658 individuals in the sample, 2.2% filled at least one antipsychotic prescription. The proportion varied across ethnic groups: Chinese, 1.0%; other Asians, 1.2%; whites, 2.3%; nonwhite non-Asians, 2.8%; and mixed ethnicity, 4.3%. After adjustment for patient characteristics and diagnoses of schizophrenia and bipolar disorder, the likelihood of filling a prescription was found to be lower among Chinese (odds ratio [OR]=.47, 95% confidence interval [CI]=.24-.90) and higher among persons of mixed ethnicity (OR=3.19, CI=1.49-6.83). Further adjustment for depression and dementia diagnoses did not significantly change the ORs for the Chinese (OR=.49, CI=.25-.98) and the mixed ethnic groups (OR=2.97, CI=1.30-6.80). Conclusions: Consistent with the existing literature on ethnic disparities in antipsychotic therapy, the study found evidence of persistent disparities in a population that has a significant number of Asians. Further studies should be done to identify possible causes of these disparities and to identify potential interventions that may reduce or eliminate them.

Author Keywords

[No Keywords available]

Index Keywords

immigrant depression Chinese schizophrenia Dementia health disparity human Self Report controlled study health status Aged psychiatric diagnosis mental health care bipolar disorder psychotherapy income cross-sectional study ethnic difference male Canada female prevalence Article major clinical study adult drug use retrospective study health survey
Link
https://www.scopus.com/inward/record.uri?eid=2-s2.0-80054841386&doi=10.1176%2fps.62.9.pss6209_1026&partnerID=40&md5=a4638fb2876975cac9d08f942c3d97db
DOI: 10.1176/ps.62.9.pss6209_1026
ISSN: 10752730
Cited by: 6
Original Language: English