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Citation Information

Type Working Paper
Title Lifestyle and Income-related Inequality in Health in South Africa
Author(s)
Publication (Day/Month/Year) 2017
URL https://econrsa.org/system/files/publications/working_papers/working_paper_677.pdf
Abstract
Evidence suggests that lifestyle factors may explain the income-related inequality in self-reported health.
This paper expands this literature by examining the contribution of smoking and alcohol consumption,
incorporating more objective measures of health directly associated with these lifestyle practices. The
Erreygers' corrected concentration index is used to measure health inequalities over time. The indices are
decomposed into observable covariates including smoking and alcohol use. We find significant smokingrelated
and income-related inequalities in both self-reported and lifestyle-related ill health. The results
suggest that smoking and alcohol use make significant contributions to income related inequality in health.
Smoking participation accounts for up to 7.35% of all measured inequality in health and 3.11% of the
inequality in self-reported health. The estimates are generally higher for all measured inequality in health
(up to 14.67%) and lower for inequality in self-reported health (1.78%) when smoking duration is
considered. Alcohol consumption accounts for 27.83% of all measured inequality in health and 3.63% of
the inequality in self-reported health. This suggests that policies that reduce unhealthy behaviors of
individuals, such as reducing tobacco consumption and harmful alcohol use, can improve population health
outcomes and reduce health inequalities.

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