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Does Oral Health-Related Quality of Life Differ by Income Group? Findings from a Nationally Representative Survey

Author

Listed:
  • André Hajek

    (Department of Health Economics and Health Services Research, University Medical Center Hamburg-Eppendorf, Hamburg Center for Health Economics, 20246 Hamburg, Germany)

  • Hans-Helmut König

    (Department of Health Economics and Health Services Research, University Medical Center Hamburg-Eppendorf, Hamburg Center for Health Economics, 20246 Hamburg, Germany)

  • Benedikt Kretzler

    (Department of Health Economics and Health Services Research, University Medical Center Hamburg-Eppendorf, Hamburg Center for Health Economics, 20246 Hamburg, Germany)

  • Larissa Zwar

    (Department of Health Economics and Health Services Research, University Medical Center Hamburg-Eppendorf, Hamburg Center for Health Economics, 20246 Hamburg, Germany)

  • Berit Lieske

    (Department of Periodontics, Preventive and Restorative Dentistry, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany)

  • Udo Seedorf

    (Department of Periodontics, Preventive and Restorative Dentistry, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany)

  • Carolin Walther

    (Department of Periodontics, Preventive and Restorative Dentistry, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
    Shared last authorship.)

  • Ghazal Aarabi

    (Department of Periodontics, Preventive and Restorative Dentistry, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
    Shared last authorship.)

Abstract

Objectives: Clarify the association between income group and oral health-related quality of life. Methods: Data were used from a nationally representative online survey with n = 3075 individuals. It was conducted in late Summer 2021. The established Oral Health Impact Profile (OHIP-G5) was used to measure oral health-related quality of life. The income group (household net income) was used as key independent variable. It was adjusted for several covariates. Full-information maximum likelihood was used to address missing values. Results: Individuals in the lowest income decile had a lower oral health-related quality of life (Cohen’s d = −0.34) compared to individuals in the second to ninth income deciles. Individuals in the highest income decile had a higher oral health-related quality of life (Cohen’s d = 0.20) compared to individuals in the second to ninth income deciles. Consequently, there was a medium difference (Cohen’s d = 0.53) between individuals in the lowest income decile and individuals in the highest income decile. Additionally, multiple linear regressions showed significant differences between individuals in the lowest income decile and individuals in the second to ninth income deciles (β = 0.72, p < 0.01). In contrast, only marginal significant differences were identified between individuals in the second to ninth income deciles and individuals in the highest income decile (β = −0.28, p < 0.10). Conclusions: The current study particularly stressed the association between low income and low oral health-related quality of life in the general adult population. Increasing oral health-related quality of life in individuals with low income is a major issue which should be targeted.

Suggested Citation

  • André Hajek & Hans-Helmut König & Benedikt Kretzler & Larissa Zwar & Berit Lieske & Udo Seedorf & Carolin Walther & Ghazal Aarabi, 2022. "Does Oral Health-Related Quality of Life Differ by Income Group? Findings from a Nationally Representative Survey," IJERPH, MDPI, vol. 19(17), pages 1-8, August.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:17:p:10826-:d:902197
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    References listed on IDEAS

    as
    1. Patrick Rouxel & Georgios Tsakos & Panayotes Demakakos & Paola Zaninotto & Tarani Chandola & Richard Geddie Watt, 2015. "Is Social Capital a Determinant of Oral Health among Older Adults? Findings from the English Longitudinal Study of Ageing," PLOS ONE, Public Library of Science, vol. 10(5), pages 1-17, May.
    2. Se-Yeon Kim & Ji-Eun Kim & Han-Na Kim & Eun-Joo Jun & Jung-Ha Lee & Ji-Soo Kim & Jin-Bom Kim, 2018. "Association of Self-Perceived Oral Health and Function with Clinically Determined Oral Health Status among Adults Aged 35–54 Years: A Cross-Sectional Study," IJERPH, MDPI, vol. 15(8), pages 1-11, August.
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