Conindex: Estimation of Concentration Indices
Open accessAbstract
Concentration indices are frequently used to measure inequality in one variable over the distribution of another. Most commonly, they are applied to the measurement of socioeconomic-related inequality in health. We introduce the user-written command conindex, which provides point estimates and standard errors of a range of concentration indices. The command also graphs concentration curves (and Lorenz curves) and performs statistical inference for the comparison of inequality between groups. We offer an accessible introduction to the various concentration indices that have been proposed to suit different measurement scales and ethical responses to inequality. We also demonstrate the command's capabilities and syntax by analyzing wealth-related inequality in health and health care in Cambodia.
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Prior research supports the expectation that COVID-19 cases and deaths would be concentrated in lower income sub-city units.
“there is ample research supporting the expectation that COVID-19 cases and deaths would be concentrated in lower income sub-city units.”
From Social epidemiology of urban COVID-19 inequalities in Latin America and Canada (2024) · cites this paper as [53]
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Gordon, T., Booysen, F., & Mbonigaba, J. (2020) · BMC Public Health · doi:10.1186/s12889-020-8368-7 · Cited by 209 · see citing works
Social epidemiology of urban COVID-19 inequalities in Latin America and Canada
Poirier, M. J., Morales Caceres, A., Dykstra, T. E., Dayrell Ferreira Sales, A., & Caiaffa, W. T. (2024) · International Journal for Equity in Health · doi:10.1186/s12939-024-02301-5 · Cited by 5 · see citing works
- Authors
- O'Donnell, O., O'Neill, S., Van Ourti, T., & Walsh, B.
- Affiliations
- Erasmus School of Economics Erasmus University Rotterdam, the Netherlands Tinbergen Institute, the Netherlands and University of Macedonia, Greece
- Department of Health Services Research and Policy London School of Hygiene and Tropical Medicine, UK
- Erasmus School of Economics Erasmus University Rotterdam, the Netherlands and Tinbergen Institute, the Netherlands
- City, University of London (GB)
- ORCID
- Walsh, Brendan
- Venue
- The Stata Journal: Promoting communications on statistics and Stata
- Publisher
- SAGE Publications
- Published
- 2016-03
- Volume
- 16
- Issue
- 1
- Pages
- 112-138
- ISSN
- 1536-867X (ISSN-L)
- 1536-8734
- PMC
- PMC4819995
- OpenAlex
- W2337449659
- Cited by
- 491
- References
- 0
- Citations by year
- 2026: 50 · 2025: 69 · 2024: 81 · 2023: 72 · 2022: 53 · 2021: 41 · 2020: 46 · 2019: 35 · 2018: 31 · 2017: 9 · 2016: 4
- FWCI
- 75.30
- Type
- journal article
- Language
- en
- Open access
- green
- pure.eur.nl
- Locations
- The Stata Journal Promoting communications on statistics and Stata (publishedVersion)
- PubMed (publishedVersion)
- EUR Research Repository (Erasmus University Rotterdam) (publishedVersion, other-oa)
- PubMed Central (acceptedVersion)
- City Research Online (City University London) (acceptedVersion)
- AgEcon Search (University of Minnesota, USA) (submittedVersion, cc-by-nc-nd)
- EUR Research Repository (Erasmus University Rotterdam) (submittedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- LSHTM Research Online (London School of Hygiene and Tropical Medicine) (submittedVersion)
- AgEcon Search (University of Minnesota, USA)
- Funders
- London School of Hygiene and Tropical Medicine
- University of Macedonia
- Erasmus Universiteit Rotterdam
- City, University of London
- Erasmus+
- National Institute on Aging (R01AG037398)
- Topics
- Social Sciences › Sociology and Political Science › Income, Poverty, and Inequality
- Social Sciences › Health › Health disparities and outcomes
- Social Sciences › Health › Public Health and Social Inequalities
- Keywords
- concentration index, Stata command, concentration curves, Lorenz curve, health disparities, socioeconomic disparities, wealth-related inequality, health care inequality
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