Australian Institute of Health and Welfare (2022) Deaths in Australia, AIHW, Australian Government, accessed 05 October 2022.
Australian Institute of Health and Welfare. (2022). Deaths in Australia. Retrieved from https://www.aihw.gov.au/reports/life-expectancy-death/deaths-in-australia
Deaths in Australia. Australian Institute of Health and Welfare, 09 June 2022, https://www.aihw.gov.au/reports/life-expectancy-death/deaths-in-australia
Australian Institute of Health and Welfare. Deaths in Australia [Internet]. Canberra: Australian Institute of Health and Welfare, 2022 [cited 2022 Oct. 5]. Available from: https://www.aihw.gov.au/reports/life-expectancy-death/deaths-in-australia
Australian Institute of Health and Welfare (AIHW) 2022, Deaths in Australia, viewed 5 October 2022, https://www.aihw.gov.au/reports/life-expectancy-death/deaths-in-australia
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There has been a long and continuing decline in death rates in Australia. Between 1907 and 2020, the overall crude mortality rate decreased by 42% (44% for males and 39% for females) (Table S5.1). When accounting for changes in the populations age structure over this period, the age-standardised death rate for males fell by 74% (from 2,234 deaths to 579 deaths per 100,000) and by 78% for females (from 1,844 deaths to 407 deaths per 100,000) (Figure 5.1).
The leading causes of death at that time were infectious diseases, followed by cardiovascular diseases. Large decreases in deaths rates since the early 1900s have also been driven by the decline of infant and child deaths. As people are now more likely to reach older ages, dementia including Alzheimer’s disease, cardiovascular diseases and other chronic conditions (notably cancers) are becoming more prominent as causes of death.
Death rates have historically been higher for males than for females; however, the gap is closing over time. The difference between male and female age-standardised death rates was largest in 1968, when the rate difference was 642 deaths per 100,000 population. In 2020, the rate difference between males and females was 173 deaths per 100,000. The reduction in rate difference between male and female rates since 1968 has largely been driven by the reduction in deaths due to cardiovascular diseases. This was influenced by several factors, including improvements in surgical techniques, hospital care, diagnosis and pharmaceuticals, as well as modifications to lifestyle factors such as smoking, diet and high blood pressure. See more on Mortality inequalities in Australia.
Source: AIHW National Mortality Database (Table S5.1).
The decline in deaths in the first half of the last century was associated with factors such as control of infectious disease and better hygiene and nutrition. The decline in the later years was associated with improvements in road safety measures, falls in smoking rates, and improvements in prevention, detection and treatment of disease such as cardiovascular disease and other chronic diseases. See more on Mortality over the twentieth century in Australia and 'Chapter 4 Changing patterns of mortality in Australia since 1900’ in Australia’s health 2022: data insights (AIHW 2022 forthcoming).
Infectious diseases were the leading cause of death in the first decade of the last century, followed by cardiovascular diseases and respiratory diseases (Figure 5.2a). In 1919, mortality due to respiratory diseases increased sharply due to the Spanish influenza pandemic. As infectious diseases declined, there was increased mortality from cardiovascular diseases and cancers from the 1920s and 1930s. In recent years, crude mortality rates from cancer have surpassed those from cardiovascular diseases.
When taking into account differences in the populations age structure over time, cardiovascular diseases have consistently been a leading cause of death for Australians over the last century, but age-standardised death rates have been steadily declining (Figure 5.2b). Deaths from cardiovascular diseases peaked in 1968 at 830 deaths per 100,000 population (age-standardised rate) and have since dropped to 118 deaths per 100,000 in 2020. Cancer (all neoplasms) deaths, after adjusting for differences in age structure, peaked in 1985 (217 deaths per 100,000 population) and have gently declined to 150 deaths per 100,000 in 2020.
Age-standardised rates of deaths due to respiratory diseases, infectious diseases and injury and poisoning declined over the last century.
Source: AIHW National Mortality Database (Table S5.2).
Over the last decade, the 10 leading causes of death for males and females have generally been the same, albeit with different rankings (Figure 5.3):
Note: Colour lines link the same leading causes of death in 2010 with those in 2020; a black line means the ranking of the cause of death remained the same in 2020 as in 2010; an orange line, that the ranking of the cause of death rose compared with that in 2010; and a green line, that the ranking of the cause of death in 2020 decreased compared with that in 2010.
Source: AIHW National Mortality Database (Table S3.1, Table S5.3).
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