Acute myocardial infarction incidence and survival in Aboriginal and non-Aboriginal populations: an observational study in the Northern Territory of Australia, 1992–2014
Objectives To examine long-term trends in acute myocardial infarction (AMI) incidence and survival among Aboriginal and non-Aboriginal people.Design Retrospective cohort study.Setting, participants All first AMI hospital cases and deaths due to ischaemic heart disease in the Northern Territory of Au...
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BMJ Publishing Group
2020-10-01
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| Series: | BMJ Open |
| Online Access: | https://bmjopen.bmj.com/content/10/10/e036979.full |
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| author | Yuejen Zhao Steven Guthridge Shu Li Cushla Coffey John R Condon |
| author_facet | Yuejen Zhao Steven Guthridge Shu Li Cushla Coffey John R Condon |
| author_sort | Yuejen Zhao |
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| description | Objectives To examine long-term trends in acute myocardial infarction (AMI) incidence and survival among Aboriginal and non-Aboriginal people.Design Retrospective cohort study.Setting, participants All first AMI hospital cases and deaths due to ischaemic heart disease in the Northern Territory of Australia (NT), 1992–2014.Main outcome measures Age standardised incidence, survival and mortality.Results The upward trend in Aboriginal AMI incidence plateaued around 2007 for males and 2001 for females. AMI incidence decreased for non-Aboriginal population, consistent with the national trends. AMI incidence was higher and survival lower for males, for Aboriginal people and in older age groups. In 2014, the age standardised incidence was 881 and 579 per 100 000 for Aboriginal males and females, respectively, compared with 290 and 187 per 100 000 for non-Aboriginal counterparts. The incidence disparity between Aboriginal and non-Aboriginal population was much greater in younger than older age groups. Survival after an AMI improved over time, and more so for Aboriginal than non-Aboriginal patients, because of a decrease in prehospital deaths and improved survival of hospitalised cases.Conclusions There was an important breakpoint in increasing trends of Aboriginal AMI incidence between 2001 and 2007. The disparity in AMI survival between the NT Aboriginal and non-Aboriginal populations reduced over time as survival improved for both populations. |
| format | Article |
| id | doaj-art-b73c054af8314a0c9ee35404fbff1c89 |
| institution | Kabale University |
| issn | 2044-6055 |
| language | English |
| publishDate | 2020-10-01 |
| publisher | BMJ Publishing Group |
| record_format | Article |
| series | BMJ Open |
| spelling | doaj-art-b73c054af8314a0c9ee35404fbff1c892024-11-16T06:15:09ZengBMJ Publishing GroupBMJ Open2044-60552020-10-01101010.1136/bmjopen-2020-036979Acute myocardial infarction incidence and survival in Aboriginal and non-Aboriginal populations: an observational study in the Northern Territory of Australia, 1992–2014Yuejen Zhao0Steven Guthridge1Shu Li2Cushla Coffey3John R Condon43 Population and Digital Health, NT Health, Darwin, Northern Territory, Australia7 Child Development, Population Health and Policy, Menzies School of Health Research, Casuarina, Northern Territory, Australia1 Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. ChinaHealth Gains Planning, Northern Territory Department of Health, Darwin, Northern Territory, AustraliaMenzies School of Health Research, Charles Darwin University, Melbourne, Victoria, AustraliaObjectives To examine long-term trends in acute myocardial infarction (AMI) incidence and survival among Aboriginal and non-Aboriginal people.Design Retrospective cohort study.Setting, participants All first AMI hospital cases and deaths due to ischaemic heart disease in the Northern Territory of Australia (NT), 1992–2014.Main outcome measures Age standardised incidence, survival and mortality.Results The upward trend in Aboriginal AMI incidence plateaued around 2007 for males and 2001 for females. AMI incidence decreased for non-Aboriginal population, consistent with the national trends. AMI incidence was higher and survival lower for males, for Aboriginal people and in older age groups. In 2014, the age standardised incidence was 881 and 579 per 100 000 for Aboriginal males and females, respectively, compared with 290 and 187 per 100 000 for non-Aboriginal counterparts. The incidence disparity between Aboriginal and non-Aboriginal population was much greater in younger than older age groups. Survival after an AMI improved over time, and more so for Aboriginal than non-Aboriginal patients, because of a decrease in prehospital deaths and improved survival of hospitalised cases.Conclusions There was an important breakpoint in increasing trends of Aboriginal AMI incidence between 2001 and 2007. The disparity in AMI survival between the NT Aboriginal and non-Aboriginal populations reduced over time as survival improved for both populations.https://bmjopen.bmj.com/content/10/10/e036979.full |
| spellingShingle | Yuejen Zhao Steven Guthridge Shu Li Cushla Coffey John R Condon Acute myocardial infarction incidence and survival in Aboriginal and non-Aboriginal populations: an observational study in the Northern Territory of Australia, 1992–2014 BMJ Open |
| title | Acute myocardial infarction incidence and survival in Aboriginal and non-Aboriginal populations: an observational study in the Northern Territory of Australia, 1992–2014 |
| title_full | Acute myocardial infarction incidence and survival in Aboriginal and non-Aboriginal populations: an observational study in the Northern Territory of Australia, 1992–2014 |
| title_fullStr | Acute myocardial infarction incidence and survival in Aboriginal and non-Aboriginal populations: an observational study in the Northern Territory of Australia, 1992–2014 |
| title_full_unstemmed | Acute myocardial infarction incidence and survival in Aboriginal and non-Aboriginal populations: an observational study in the Northern Territory of Australia, 1992–2014 |
| title_short | Acute myocardial infarction incidence and survival in Aboriginal and non-Aboriginal populations: an observational study in the Northern Territory of Australia, 1992–2014 |
| title_sort | acute myocardial infarction incidence and survival in aboriginal and non aboriginal populations an observational study in the northern territory of australia 1992 2014 |
| url | https://bmjopen.bmj.com/content/10/10/e036979.full |
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