Temporal Trends in Acute Coronary Syndrome Incidence in Aboriginal and Non-Aboriginal People in Western Australia
- population-based cohort study
- linked hospital and mortality data
+1 more
- linked hospital and mortality data
Authors' conclusion
Despite some evidence of declines in ACS incidence among Aboriginal groups, disparities with non-Aboriginal people persisted. Sustained Aboriginal-led efforts are needed to address underlying determinants and reduce the gap.
Study context
- Population
- Western Australian residents aged 25 to 84 years with incident acute coronary syndrome (ACS), 2003–20204,097 Aboriginal and 64,805 non-Aboriginal incident ACS cases · Aboriginal incident ACS cases 4,097 · non-Aboriginal incident ACS cases 64,805
- Participants
- 4,097 vs 64,805
- Exposure
- Aboriginal-to-non-Aboriginal incidence rate ratios; pre-Closing the Gap (2003-2008) and post-Closing the Gap periods (2009-2016; 2017-2020)
- Aboriginaln = 4,097
- non-Aboriginaln = 64,805
Main finding
As reported in the abstract
Annual percentage change in ACS incidence, Aboriginal · 2009 and 2016
older men
−4.9%/y [95% CI, −8.9% to −0.7%]
younger women
−4.8%/y [95% CI, −8.7% to −0.7%]
Observational data: associations, not effects.
Further findings
Comorbidity prevalence
diabetes
chronic kidney disease
| Outcome | risk ratios |
|---|---|
| Case fatality · across periods · 20% to 50% higher among Aboriginal across age-sex strata | 1.2-1.5 |
Incidence rate ratios, 2003 to 2008 and 2017 to 2020
- men 25-54 years
- 5.2-5.6
- men 55-84 years
- 2.9-2.1
- women 25-54 years
- 10.3-10.0
- women 55-84 years
- 2.9-3.6
- limited changes
Annual at-risk population
- 2003
- 1 215 300
- 2020
- 1 765 564
Original publication
Temporal Trends in Acute Coronary Syndrome Incidence in Aboriginal and Non-Aboriginal People in Western Australia. Circ Popul Health Outcomes. Published 23 February 2026. doi:10.1161/circoutcomes.125.012650
Summarised from the published abstract; every number is checked against it