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Australian Health Review Australian Health Review Society
Journal of the Australian Healthcare & Hospitals Association
RESEARCH ARTICLE (Open Access)

Value-based health care for Aboriginal peoples with chronic conditions in the Northern Territory: a cohort study

Maya Cherian A , Yuejen Zhao A , Antonio Ahumada-Canale B C , Peter Nihill A , Maja VanBruggen A , Deborah Butler A and Paul Burgess A D *
+ Author Affiliations
- Author Affiliations

A Northern Territory Department of Health, Darwin, NT, Australia.

B Macquarie University Centre for the Health Economy, Macquarie University Business School & Australian Institute of Health Innovation, Macquarie University, Sydney, NSW, Australia.

C Centre for Health Economics Research and Evaluation, University of Technology Sydney, Sydney, NSW, Australia.

D Faculty of Health, Charles Darwin University, Darwin, NT, Australia.

* Correspondence to: paul.burgess@nt.gov.au

Australian Health Review 49, AH24241 https://doi.org/10.1071/AH24241
Submitted: 23 October 2024  Accepted: 28 November 2024  Published: 13 January 2025

© 2025 The Author(s) (or their employer(s)). Published by CSIRO Publishing on behalf of AHHA. This is an open access article distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND)

Abstract

Objective

This study aimed to investigate associations between patient activation, healthcare use and clinical outcomes for Aboriginal peoples living with a chronic condition in remote Northern Territory (NT) communities.

Methods

A retrospective cohort study was undertaken between 2 April 2020 and 1 April 2022 to measure activation and its associations with chronic conditions secondary prevention treatment targets and healthcare usage: hospitalisations, potentially preventable hospitalisations and patient travel. All Aboriginal peoples enrolled at NT Government health services, who had one or more preventable chronic conditions and were prescribed one or more oral chronic condition medications identified in the Primary Care Information System, were included in the study. Patient activation was defined as a 90-day medicine possession ratio ≥80%. An activated patient has the belief, knowledge, skills and behaviours to manage their chronic conditions.

Results

A total of 5356 patients met the inclusion criteria; 9% of these patients were activated. Activated patients were older and sicker but were significantly more likely to achieve treatment targets for glycosylated haemoglobin, blood pressure and total and low-density lipoprotein cholesterol. Activated patients used more primary healthcare and outpatient resources and had a non-significant trend for less acute care use.

Conclusions

The remote NT Government primary healthcare system is providing low-value chronic conditions care for patients. As identified by Aboriginal peoples, strengthening culturally appropriate self-management support could lead to more patients becoming activated, better health outcomes and decreased acute care demand.

Keywords: health policy, Indigenous health, primary health care.

References

Australian Institute of Health and Welfare. Contribution of chronic disease to the gap in adult mortality between Aboriginal and Torres Strait Islander and other Australians. Canberra: AIHW, 2010. Cat. No. IHW 48. Available at https://www.aihw.gov.au/reports/indigenous-australians/contribution-of-chronic-disease-to-the-gap-in-mort/summary [accessed March 2022].

Zhang X, Zhao Y, Guthridge S. NT Burden of Disease and Injury Study: impact and causes of illness, injury and death in the Northern Territory, 2004-2016. Darwin: Department of Health; 2018.

Zhang X, Zhao Y. Potentially preventable hospitalisations in the Northern Territory 2005-06 to 2017-18. Darwin: Department of Health; 2021.

Australian Bureau of Statistics. Estimates of Aboriginal and Torres Strait Islander Australians. Canberra: ABS; 2018. Available at https://www.abs.gov.au/statistics/people/aboriginal-and-torres-strait-islander-peoples/estimates-aboriginal-and-torres-strait-islander-australians/latest-release [cited May 2022].

Russell DJ, Zhao Y, Guthridge S, et al. Patterns of resident health workforce turnover and retention in remote communities of the Northern Territory of Australia, 2013-2015. Hum Resour Health 2017; 15(1): 52.
| Crossref | Google Scholar | PubMed |

Zhao Y, Wakerman J, Zhang X, et al. Remoteness, models of primary care and inequity: Medicare under-expenditure in the Northern Territory. Aust Health Rev 2022; 46(3): 302-308.
| Crossref | Google Scholar | PubMed |

Smith G, Kirkham R, Gunabarra C, et al. ‘We can work together, talk together’: an Aboriginal Health Care Home. Aust Health Rev 2019; 43(5): 486-491.
| Crossref | Google Scholar | PubMed |

World Economic Forum. Value in Healthcare Laying the Foundation for Health System Transformation. Switzerland: World Economic Forum; 2017.

Wagner EH. Chronic disease management: what will it take to improve care for chronic illness? Eff Clin Pract 1998; 1(1): 2-4.
| Google Scholar | PubMed |

10  Hibbard JH, Stockard J, Mahoney ER, Tusler M. Development of the Patient Activation Measure (PAM): conceptualizing and measuring activation in patients and consumers. Health Serv Res 2004; 39(4 Pt 1): 1005-1026.
| Crossref | Google Scholar | PubMed |

11  Greene J, Hibbard JH, Sacks R, et al. When patient activation levels change, health outcomes and costs change, too. Health Aff 2015; 34(3): 431-437.
| Crossref | Google Scholar | PubMed |

12  Hibbard JH, Cunningham PJ. How Engaged Are Consumers in Their Health and Health Care, and Why Does It Matter. Washington, DC: Centre for Studying Health System Change; 2008. Available at http://www.hschange.org/CONTENT/1019/index.html [cited March 2022].

13  von Elm E, Altman DG, Egger M, Pocock SJ, Gøtzsche PC, Vandenbroucke JP, for the STROBE initiative. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies. Lancet 2007; 370(9596): 1453-1457.
| Crossref | Google Scholar | PubMed |

14  Remote Primary Health Care Manual. CARPA Standard Treatment Manual, 7th edn. Alice Springs: Centre for Remote Health; 2017.

15  Sperber CM, Samarasinghe SR, Lomax GP. An upper and lower bound of the Medication Possession Ratio. Patient Prefer Adherence 2017; 11: 1469-1478.
| Crossref | Google Scholar | PubMed |

16  Sikka R, Xia F, Aubert RE. Estimating Medication Persistency Using Administrative Claims Data. Am J Manag Care 2005; 11(7): 449-457.
| Google Scholar |

17  Australian Institute of Health and Welfare. National Healthcare Agreement: PI 18-Selected potentially preventable hospitalisations, 2022. Canberra: AIHW; 2022. Available at https://meteor.aihw.gov.au/content/740851 [updated 2022; cited May 2022].

18  Talic S, Marquina C, Ofori-Asenso R, et al. Switching, Persistence and Adherence to statin Therapy: a Retrospective Cohort Study Using the Australian National Pharmacy Data. Cardiovasc Drugs Ther 2022; 36(5): 867-877.
| Crossref | Google Scholar | PubMed |

19  Greene J, Hibbard JH. Why does patient activation matter? An examination of the relationships between patient activation and health-related outcomes. J Gen Intern Med 2012; 27(5): 520-526.
| Crossref | Google Scholar | PubMed |

20  Harvey PW, Petkov J, Kowanko I, et al. Chronic condition management and self-management in Aboriginal communities in South Australia: outcomes of a longitudinal study. Aust Health Rev 2013; 37(2): 246-250.
| Crossref | Google Scholar | PubMed |

21  Harvey PW, Petkov JN, Misan G, et al. Self-management support and training for patients with chronic and complex conditions improves health-related behaviour and health outcomes. Aust Health Rev 2008; 32(2): 330-338.
| Crossref | Google Scholar | PubMed |

22  Nous Group. Evaluation of the Northern Territory Chronic Conditions Prevention and Management Strategy 2010-2020: final report. Darwin: Nous Group; 2020.

23  Department of Prime Minister and Cabinet. Best Practice Regulation Guidance Note Value of statistical life. Canberra: Australian Government; 2020.

24  Zhao Y, Li SQ, Wilson T, et al. Improved life expectancy for Indigenous and non-Indigenous people in the Northern Territory, 1999–2018: overall and by underlying cause of death. Med J Aust 2022; 217(1): 30-35.
| Crossref | Google Scholar | PubMed |