IDEAS home Printed from https://ideas.repec.org/a/plo/pone00/0276339.html
   My bibliography  Save this article

Feasibility of the International Wealth Index and the Gapminder tool as instruments to assess household income and estimate catastrophic expenditure: A prospective patient-level cohort study in India

Author

Listed:
  • CROCODILE study group

Abstract

Background: Patient income assessment is required to assess healthcare catastrophic expenditure (Sustainable Development Goal) but self-reported income has several biases. This study aimed to assess the feasibility of the International Wealth Index (IWI) and the Gapminder tool as indirect instruments to assess household income. Methods: Prospective cohort study of colorectal cancer patients in five tertiary care hospitals in India (Dec 2020-August 2021). Patient self-reported household income was compared to income estimated from the IWI (twelve questions about household goods) and the Gapminder tool (five pictures of household assets). Agreement between instruments was explored with Bland-Altman methods. Cancer care expenditure from the same cohort was used to illustrate the impact of these tools in catastrophic expenditure rates. Results: From the 226 patients included, 99.5% completed the IWI and the Gapminder tool. Overall, self-reported incomes were lower than the estimated from the IWI and Gapminder tools (median incomes: 17350₹ for self-reported, 37491₹ for IWI and 51520₹ for Gapminder). The IWI showed better agreement with the self-reported income than the Gapminder tool. For both instruments, the agreement was better for low income earning households. Illustrative catastrophic expenditure rates range from 71% to 56% to 43% when using self-reported, IWI and Gapminder incomes respectively. Discussion: It is feasible to use the IWI and the Gapminder tools to estimate household income although they might overestimate income, with an impact on catastrophic expenditure rates. Further refinement of these tools could enable global monitoring and modelling of catastrophic expenditure from real-world data, at low burden for patients.

Suggested Citation

  • CROCODILE study group, 2023. "Feasibility of the International Wealth Index and the Gapminder tool as instruments to assess household income and estimate catastrophic expenditure: A prospective patient-level cohort study in India," PLOS ONE, Public Library of Science, vol. 18(5), pages 1-12, May.
    • Handle: RePEc:plo:pone00:0276339
    DOI: 10.1371/journal.pone.0276339
    as

    Download full text from publisher

    File URL: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0276339
    Download Restriction: no
    File URL: https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0276339&type=printable
    Download Restriction: no
    File URL: https://libkey.io/10.1371/journal.pone.0276339?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. Mathieu J. P. Poirier & Karen A. Grépin & Michel Grignon, 2020. "Approaches and Alternatives to the Wealth Index to Measure Socioeconomic Status Using Survey Data: A Critical Interpretive Synthesis," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 148(1), pages 1-46, February.
    2. Leila Doshmangir & Edris Hasanpoor & Gerard Joseph Abou Jaoude & Behzad Eshtiagh & Hassan Haghparast-Bidgoli, 2021. "Incidence of Catastrophic Health Expenditure and Its Determinants in Cancer Patients: A Systematic Review and Meta-analysis," Applied Health Economics and Health Policy, Springer, vol. 19(6), pages 839-855, November.
    3. David McKenzie, 2005. "Measuring inequality with asset indicators," Journal of Population Economics, Springer;European Society for Population Economics, vol. 18(2), pages 229-260, June.
    4. Jeroen Smits & Roel Steendijk, 2015. "The International Wealth Index (IWI)," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 122(1), pages 65-85, May.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Bucciol, Alessandro & Burro, Giovanni, 2022. "Is there a happiness premium for working in the public sector? Evidence from Italy," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 97(C).
    2. Kumar, Sandeep & Chakraverty, S. & Sethi, Narayan, 2025. "Assessing changes in wealth index using primary survey data," Socio-Economic Planning Sciences, Elsevier, vol. 98(C).
    3. Monroy-Gómez-Franco, Luis & Vélez-Grajales, Roberto & López-Calva, Luis F., 2022. "The potential effects of the COVID-19 pandemic on learnings," International Journal of Educational Development, Elsevier, vol. 91(C).
    4. Qanti, Sara Ratna & Peralta, Alexandra & Zeng, Di, 2021. "Social Norms and Perception on Women's Participation in Agricultural Decisions: The Case of West Java, Indonesia," 2021 Conference, August 17-31, 2021, Virtual 314984, International Association of Agricultural Economists.
    5. repec:osf:socarx:zgfvk_v1 is not listed on IDEAS
    6. Monroy-Gómez-Franco, Luis Angel, 2021. "Modelling the learning impacts of educational disruptions in the short and long run," SocArXiv z6x5s, Center for Open Science.
    7. Monroy-Gómez-Franco, Luis Angel, 2022. "Regional comparisons of intergenerational social mobility: the importance of positional mobility," SocArXiv zgfvk, Center for Open Science.
    8. Monroy-Gómez-Franco, Luis & Vélez-Grajales, Roberto & Yalonetzky, Gastón, 2021. "Layers of inequality: Unequal opportunities and skin colour in Mexico," MPRA Paper 106605, University Library of Munich, Germany.
    9. Pardy, Martina & Riom, Capucine & Hoffmann, Roman, 2024. "Climate impacts on material wealth inequality: global evidence from a subnational dataset," LSE Research Online Documents on Economics 125447, London School of Economics and Political Science, LSE Library.
    10. Shifa, Muna & Leibbrandt, Murray, 2021. "Spatial Inequality in Sub-Saharan Africa," EconStor Preprints 244591, ZBW - Leibniz Information Centre for Economics.
    11. Lukuyu, June & Shiran, Myriam & Kennedy, Ryan & Urpelainen, Johannes & Taneja, Jay, 2023. "Purchasing power: Examining customer profiles and patterns for decentralized electricity systems in East Africa," Energy Policy, Elsevier, vol. 172(C).
    12. Tanveer Ahmed Naveed & David Gordon & Sami Ullah & Mary Zhang, 2021. "The Construction of an Asset Index at Household Level and Measurement of Economic Disparities in Punjab (Pakistan) by using MICS-Micro Data," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 155(1), pages 73-95, May.
    13. Jeroen Smits & Janine Huisman, 2024. "The GDL Vulnerability Index (GVI)," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 174(2), pages 721-741, September.
    14. Céline Zipfel, 2022. "The demand side of Africa's demographic transition: desired fertility, wealth, and jobs," STICERD - Economic Organisation and Public Policy Discussion Papers Series 71, Suntory and Toyota International Centres for Economics and Related Disciplines, LSE.
    15. Monroy-Gómez-Franco, Luis, 2023. "The importance of positional mobility for regional comparisons," Research in Economics, Elsevier, vol. 77(3), pages 322-333.
    16. André Junqueira Caetano & José G. Dias, 2018. "Socioeconomic Classification of the Working-Age Brazilian Population: A Joint Latent Class Analysis Using Social Class and Asset-Based Perspectives," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 139(1), pages 119-146, August.
    17. Abderrahman Yassine & Fatima Bakass, 2022. "Do Education and Employment Play a Role in Youth’s Poverty Alleviation? Evidence from Morocco," Sustainability, MDPI, vol. 14(18), pages 1-25, September.
    18. Manea, Roxana Elena & Piraino, Patrizio & Viarengo, Martina, 2023. "Crime, inequality and subsidized housing: Evidence from South Africa," World Development, Elsevier, vol. 168(C).
    19. Giulia Greco, 2018. "Setting the Weights: The Women’s Capabilities Index for Malawi," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 135(2), pages 457-478, January.
    20. Paul J. Salia, 2014. "The Effect of Microcredit on the Household Welfare (Empirical Evidences from Women Micro-entrepreneurs in Tanzania)," International Journal of Academic Research in Business and Social Sciences, Human Resource Management Academic Research Society, International Journal of Academic Research in Business and Social Sciences, vol. 4(5), pages 259-272, May.
    21. Florencia Torche & Luis F. Lopez-Calva, 2013. "Stability and Vulnerability of the Latin American Middle Class," Oxford Development Studies, Taylor & Francis Journals, vol. 41(4), pages 409-435, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:plo:pone00:0276339. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: plosone (email available below). General contact details of provider: https://journals.plos.org/plosone/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.