Epidemiol Rev 2004;26:78-91
© 2004 by the Oxford University Press
Income Inequality and Health: What Have We Learned So Far?
From the Department of Society, Human Development, and Health, Harvard School of Public Health, Boston, MA.
Correspondence to Dr. S. V. Subramanian, Department of Society, Human Development, and Health, Harvard School of Public Health, 677 Huntington Avenue, Kresge 7th Floor, Boston, MA 02115-6096 (e-mail: svsubram@hsph.harvard.edu).
Received for publication November 3, 2003; accepted for publication December 19, 2003.
Abbreviation: OR, odds ratio.
| The first 150 words of the full text of this article appear below. |
| INTRODUCTION |
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Many developed countries have experienced a sharp rise in income inequality during the past three decades, and the United States is no exception (1). For example, the average annual salary in America in inflation-adjusted 1998 dollars increased from $32,522 in 1970 to $35,864 in 1999, that is, a modest 10 percent increase over three decades. By contrast over the same period, the average annual compensation of the top 100 chief executive officers rose from $1.3 million (or 39 times the pay of an average worker) to $37.5 million (or more than 1,000 times the pay of an average worker) (2). Recent trends in wealth inequality have been equally noteworthy. The net worth of families in the top decile rose by 69 percent, to $833,600 in 2001, from $493,400 in 1998. By contrast over the same period, the net worth of families in the lowest fifth of
| THE MEASUREMENT OF INCOME INEQUALITY |
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| INCOME INEQUALITY AND HEALTH: THEORETICAL CONSIDERATIONS |
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| THE MULTILEVEL NATURE OF THE INCOME INEQUALITY HYPOTHESIS |
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| MULTILEVEL STUDIES OF INCOME INEQUALITY AND HEALTH: WHAT DOES THE EVIDENCE TELL US? |
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| INCOME INEQUALITY AND HEALTH: CURRENT DEBATES |
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Confounding by individual income
Confounding by educational attainment
Confounding by racial composition
Confounding by regional effects
Lag effects of income inequality
| INCOME INEQUALITY AND HEALTH: AN AGENDA FOR FUTURE RESEARCH |
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Teasing out income inequality, relative income, and relative rank
Testing "cross-level interactions": who pays the price of income inequality?
Pathways linking income inequality to health
The importance of geographic scale
Need for longitudinal studies
Modeling choices and interpreting multilevel coefficients
| CONCLUSION |
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| ACKNOWLEDGMENTS |
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