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Social inequalities in antidepressant treatment and mortality: a longitudinal register study

Published online by Cambridge University Press:  23 November 2006

MIKA KIVIMÄKI ,
DAVID GUNNELL ,
DEBBIE A. LAWLOR ,
GEORGE DAVEY SMITH ,
JAANA PENTTI ,
MARIANNA VIRTANEN ,
MARKO ELOVAINIO ,
TIMO KLAUKKA  and
JUSSI VAHTERA
MIKA KIVIMÄKI
Affiliation:
International Institute for Health and Society, Department of Epidemiology and Public Health, University College London, UK Finnish Institute of Occupational Health, Helsinki, Finland
DAVID GUNNELL
Affiliation:
Department of Social Medicine, University of Bristol, UK
DEBBIE A. LAWLOR
Affiliation:
Department of Social Medicine, University of Bristol, UK
GEORGE DAVEY SMITH
Affiliation:
Department of Social Medicine, University of Bristol, UK
JAANA PENTTI
Affiliation:
International Institute for Health and Society, Department of Epidemiology and Public Health, University College London, UK
MARIANNA VIRTANEN
Affiliation:
International Institute for Health and Society, Department of Epidemiology and Public Health, University College London, UK
MARKO ELOVAINIO
Affiliation:
National Institute for Welfare and Health, Helsinki, Finland
TIMO KLAUKKA
Affiliation:
Social Insurance Institution, Helsinki, Finland
JUSSI VAHTERA
Affiliation:
Finnish Institute of Occupational Health, Helsinki, Finland
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Abstract

Background. Despite an increased prevalence of depression among people of low socio-economic position, it remains unclear whether their treatment with antidepressants appropriately matches their increased need compared with people from more affluent backgrounds. This study examined socio-economic differences in antidepressant prescriptions and mortality related to depressive disorders.

Method. A longitudinal register study of 17947 male and 47458 female local government employees with linked information on socio-economic indicators (education and occupational status) and data on antidepressant use and mortality associated with depressive disorder (suicide, alcohol-related deaths) during the years 1994 to 2000.

Results. In men, antidepressant treatment was less common among low educational groups than among high educational groups (OR 0·87, 95% CI 0·76–0·99) and a corresponding difference was seen between occupational statuses (OR for manual v. upper non-manual 0·72, 95% CI 0·62–0·84). In women, socio-economic position was not associated with antidepressant use. However, both among the men and women, employees with low socio-economic position had increased risk for mental-health-related mortality, as indicated by suicides, deaths from alcohol-related causes, and all-cause mortality.

Conclusions. These data suggest a mismatch in the treatment of depression relative to apparent clinical need, with the lowest levels of treatment concentrated in the lower socio-economic groups, despite evidence of their increased prevalence of depression and suicide.

Type
Original Article
Information
Psychological Medicine , Volume 37 , Issue 3 , March 2007 , pp. 373 - 382
Copyright
2006 Cambridge University Press

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