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The Health Impacts of Changes in Individual or Household Income: A Systematic Review

17 Pages Posted: 8 Aug 2018

See all articles by Anmol Yagnik

Anmol Yagnik

York University - Faculty of Health; University of the West of Scotland - School of Media, Culture and Society

Gerry McCartney

Public Health Scotland

Mark Robinson

Government of the United Kingdom - NHS Health Scotland

Wendy Hearty

Government of the United Kingdom - Public Health Science Directorate

Gillian Armour

Government of the United Kingdom - Public Health Science Directorate

Chik Collins

University of the West of Scotland - School of Media, Culture and Society

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Abstract

Background: Income is a centrally important determinant of population health, yet the health impacts of changes to income are unknown. This study aimed to systematically review the available literature to clarify the health impact of changes to individual or household income.
Methods: We undertook a systematic review, critical appraisal and narrative synthesis. We searched seven databases and the grey literature. The exposure of interest was any change in individual or household income and we included studies with any general health or mortality outcome. We limited the review to longitudinal studies with a non-unexposed comparison group and excluded studies considering only specific health outcomes. There were no restrictions to the time period or populations of interest.
Findings: We screened 7,283 citations and identified 19 high quality studies for inclusion. Fourteen examined the impact of secular changes in income and generally found that increased income led to increased self-assessed health. The impact of inheritances or lottery wins was uncertain but generally positive. Changes in income in the context of social security changes had mixed impacts on health.
Interpretation: Increased income over time is associated with increased self-assessed health but there is an absence of evidence of the impact on mortality. There is a need for studies of the impacts of changes in individual income on mortality and for evaluations of changes in policy that affect incomes.
Funding Statement: Anmol Yagnik was granted a Global Health Travel Award by York University to the amount of $4,000 (CAD) to travel to Scotland and work on this project. No other funding was received for this work.
Declaration of Interests: The authors declare no competing interests.

Keywords: Systematic Review, Income, Health, Mortality, Self-Assessed Health

Suggested Citation

Yagnik, Anmol and McCartney, Gerry and Robinson, Mark and Hearty, Wendy and Armour, Gillian and Collins, Chik, The Health Impacts of Changes in Individual or Household Income: A Systematic Review (June 29, 2018). Available at SSRN: https://ssrn.com/abstract=3207910 or http://dx.doi.org/10.2139/ssrn.3207910

Anmol Yagnik

York University - Faculty of Health

4700 Keele St.
Toronto, Ontario M3J 1P3
Canada

University of the West of Scotland - School of Media, Culture and Society

Scotland
United Kingdom

Gerry McCartney (Contact Author)

Public Health Scotland ( email )

Scotland
United Kingdom

Mark Robinson

Government of the United Kingdom - NHS Health Scotland

Scotland
United Kingdom

Wendy Hearty

Government of the United Kingdom - Public Health Science Directorate

Scotland
United Kingdom

Gillian Armour

Government of the United Kingdom - Public Health Science Directorate ( email )

Scotland
United Kingdom

Chik Collins

University of the West of Scotland - School of Media, Culture and Society

Scotland
United Kingdom

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