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Social inequality in the prevalence of depressive disorders
  1. Ingelise Andersen,
  2. Karsten Thielen,
  3. Else Nygaard,
  4. Finn Diderichsen
  1. Copenhagen University, Institute of Public Health Science, Denmark
  1. E-mail: inan{at}pubhealth.ku.dk

Abstract

Background: Uncertainties exist about the strength of the relation between socio-economic position and depressive disorders. The aim of this study was to investigate the association between education, occupation, employment and income and depressive disorders measured as minor and major depression as well as antidepressant prescriptions.

Methods: Data were collected from a Danish cross sectional study collected year 2000, comprising 9254 subjects, 55% women, and aged 36-56 years. We used register-based information on education, income and prescription.

Results: The prevalence of major depression DSM-IV algorithm was 3,3% among men and women, whereas minor depression and prescriptions revealed statistically significant higher prevalence among females. A social gradient was found for all depressive end-points with the strongest estimates related to major depressive disorder (MDD). The associations were as follows: MDD and low education odds ratio (OR) 2.38 (CI 95% 1.7 to 3.4), MDD and non-employment OR 11.67 (CI 95% 8.06 to16.89), MDD and low income OR 9.78 (CI 95% 6.49 to14.74). Education only explained a minor part of the association between non-employment and depressive disorders and no associations were found between education and prescription. This indicates a strong two-way association between depression and non-employment, low-income, respectively.

Conclusion: We found a social gradient in depressive disorders regardless of socio-economic position being measured by education, occupation, employment or income. Severe socioeconomic consequences of depression are indicated by the fact, that the associations with non-employment and low income were much stronger than the association with low education.

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