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Effect of Health Literacy on Quality of Life amongst Patients with Ischaemic Heart Disease in Australian General Practice

Author

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  • David Alejandro González-Chica
  • Zandile Mnisi
  • Jodie Avery
  • Katherine Duszynski
  • Jenny Doust
  • Philip Tideman
  • Andrew Murphy
  • Jacquii Burgess
  • Justin Beilby
  • Nigel Stocks

Abstract

Background: Appropriate understanding of health information by patients with cardiovascular disease (CVD) is fundamental for better management of risk factors and improved morbidity, which can also benefit their quality of life. Objectives: To assess the relationship between health literacy and health-related quality of life (HRQoL) in patients with ischaemic heart disease (IHD), and to investigate the role of sociodemographic and clinical variables as possible confounders. Methods: Cross-sectional study of patients with IHD recruited from a stratified sample of general practices in two Australian states (Queensland and South Australia) between 2007 and 2009. Health literacy was measured using a validated questionnaire and classified as inadequate, marginal, or adequate. Physical and mental components of HRQoL were assessed using the Medical Outcomes Study Short Form (SF12) questionnaire. Analyses were adjusted for confounders (sociodemographic variables, clinical history of IHD, number of CVD comorbidities, and CVD risk factors) using multiple linear regression. Results: A total sample of 587 patients with IHD (mean age 72.0±8.4 years) was evaluated: 76.8% males, 84.2% retired or pensioner, and 51.4% with up to secondary educational level. Health literacy showed a mean of 39.6±6.7 points, with 14.3% (95%CI 11.8–17.3) classified as inadequate. Scores of the physical component of HRQoL were 39.6 (95%CI 37.1–42.1), 42.1 (95%CI 40.8–43.3) and 44.8 (95%CI 43.3–46.2) for inadequate, marginal, and adequate health literacy, respectively (p-value for trend = 0.001). This association persisted after adjustment for confounders. Health literacy was not associated with the mental component of HRQoL (p-value = 0.482). Advanced age, lower educational level, disadvantaged socioeconomic position, and a larger number of CVD comorbidities adversely affected both, health literacy and HRQoL. Conclusion: Inadequate health literacy is a contributing factor to poor physical functioning in patients with IHD. Increasing health literacy may improve HRQoL and reduce the impact of IHD among patients with this chronic CVD.

Suggested Citation

  • David Alejandro González-Chica & Zandile Mnisi & Jodie Avery & Katherine Duszynski & Jenny Doust & Philip Tideman & Andrew Murphy & Jacquii Burgess & Justin Beilby & Nigel Stocks, 2016. "Effect of Health Literacy on Quality of Life amongst Patients with Ischaemic Heart Disease in Australian General Practice," PLOS ONE, Public Library of Science, vol. 11(3), pages 1-15, March.
    • Handle: RePEc:plo:pone00:0151079
    DOI: 10.1371/journal.pone.0151079
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    References listed on IDEAS

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    1. de Boer, Angela G. E. M. & Wijker, Wouter & de Haes, Hanneke C. J. M., 1997. "Predictors of health care utilization in the chronically ill: a review of the literature," Health Policy, Elsevier, vol. 42(2), pages 101-115, November.
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    1. Ágnes Sántha, 2021. "The Sociodemographic Determinants of Health Literacy in the Ethnic Hungarian Mothers of Young Children in Eastern Europe," IJERPH, MDPI, vol. 18(11), pages 1-15, May.
    2. Marija Jovanić & Marija Zdravković & Dejana Stanisavljević & Aleksandra Jović Vraneš, 2018. "Exploring the Importance of Health Literacy for the Quality of Life in Patients with Heart Failure," IJERPH, MDPI, vol. 15(8), pages 1-13, August.
    3. Ivana Skoumalova & Andrea Madarasova Geckova & Jaroslav Rosenberger & Maria Majernikova & Peter Kolarcik & Daniel Klein & Andrea F. de Winter & Jitse P. van Dijk & Sijmen A. Reijneveld, 2022. "Low Health Literacy Is Associated with Poorer Physical and Mental Health-Related Quality of Life in Dialysed Patients," IJERPH, MDPI, vol. 19(20), pages 1-9, October.
    4. Arina Anis Azlan & Mohammad Rezal Hamzah & Jen Sern Tham & Suffian Hadi Ayub & Abdul Latiff Ahmad & Emma Mohamad, 2021. "Associations between Health Literacy and Sociodemographic Factors: A Cross-Sectional Study in Malaysia Utilising the HLS-M-Q18," IJERPH, MDPI, vol. 18(9), pages 1-11, May.
    5. Mikyeong Cho & Hyeonkyeong Lee & Young-Me Lee & Ja-yin Lee & Haeyoung Min & Youlim Kim & Sookyung Kim, 2019. "Psychometric properties of the Korean version of the Health Literacy on Social Determinants of Health Questionnaire (K-HL-SDHQ)," PLOS ONE, Public Library of Science, vol. 14(11), pages 1-14, November.
    6. Wadad Kathy Tannous & Moin Uddin Ahmed & James Rufus John & Graham Reece & Golo Ahlenstiel, 2021. "Estimating the Economic Burden of Low Health Literacy in the Blacktown Community in Sydney, Australia: A Population-Based Study," IJERPH, MDPI, vol. 18(5), pages 1-23, February.
    7. Anna Aaby & Karina Friis & Bo Christensen & Helle Terkildsen Maindal, 2020. "Health Literacy among People in Cardiac Rehabilitation: Associations with Participation and Health-Related Quality of Life in the Heart Skills Study in Denmark," IJERPH, MDPI, vol. 17(2), pages 1-12, January.

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