Income inequality and depressive symptoms in South Africa: A longitudinal analysis of the National Income Dynamics Study.

Journal: Health & place

Volume: 42

Issue: 

Year of Publication: 2018

Affiliated Institutions:  Department of Social and Behavioral Sciences, Harvard T. H. Chan School of Public Health, Huntington Avenue, Kresge th Floor, Boston, MA , USA. Electronic address: kafuig@post.harvard.edu. Department of Social and Behavioral Sciences, Harvard T. H. Chan School of Public Health, Huntington Avenue, Kresge th Floor, Boston, MA , USA; Department of Global Health and Social Medicine, King's College London, Strand Campus, Strand, London WCR LS, United Kingdom. Electronic address: mavendan@hsph.harvard.edu. Department of Social and Behavioral Sciences, Harvard T. H. Chan School of Public Health, Huntington Avenue, Kresge th Floor, Boston, MA , USA. Electronic address: svsubram@hsph.harvard.edu. Department of Social and Behavioral Sciences, Harvard T. H. Chan School of Public Health, Huntington Avenue, Kresge th Floor, Boston, MA , USA. Electronic address: ikawachi@hsph.harvard.edu.

Abstract summary 

Research suggests that income inequality may detrimentally affect mental health. We examined the relationship between district-level income inequality and depressive symptoms among individuals in South Africa-one of the most unequal countries in the world-using longitudinal data from Wave 1 (2008) and Wave 3 (2012) of the National Income Dynamics Study. Depressive symptoms were measured using the Center for Epidemiological Studies of Depression Short Form while district Gini coefficients were estimated from census and survey sources. Age, African population group, being single, being female, and having lower household income were independently associated with higher depressive symptoms. However, in longitudinal, fixed-effects regression models controlling for several factors, district-level Gini coefficients were not significantly associated with depressive symptoms scores. Our results do not support the hypothesis of a causal link between income inequality and depressive symptoms in the short-run. Possible explanations include the high underlying levels of inequality in all districts, or potential lags in the effect of inequality on depression.

Authors & Co-authors:  Adjaye-Gbewonyo Kafui K Avendano Mauricio M Subramanian S V SV Kawachi Ichiro I

Study Outcome 

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Statistics
Citations :  Adjaye-Gbewonyo K, Kawachi I. Use of the Yitzhaki Index as a test of relative deprivation for health outcomes: a review of recent literature. Social Science and Medicine. 2012;75(1):129–137.
Authors :  4
Identifiers
Doi : 10.1016/j.healthplace.2016.08.013
SSN : 1873-2054
Study Population
Male,Female
Mesh Terms
Adult
Other Terms
Study Design
Longitudinal Study,Cross Sectional Study
Study Approach
Country of Study
South Africa
Publication Country
England