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Provisional Mortality Statistics

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Provisional deaths data for measuring changes in patterns of mortality

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Reference period
Jan - May 2023
Released
25/08/2023
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Key statistics

  • There were 16,348 deaths which occurred in May 2023. This is 0.7% less than in May 2022.

  • The death rate for May 2023 was 45.2 per 100,000 people. This compares to a rate of 47.2 in 2022.

  • COVID-19 caused 552 deaths in June, down from 602 in May (see article).

Upcoming changes to the Provisional Mortality Statistics releases

From August 2023 there will be a scheduling change to the Provisional Mortality Statistics report and associated articles. Detailed Provisional Mortality reports will be released every 2 months instead of every month. The frequency of the ‘COVID-19 Mortality in Australia’ articles will also reduce. 

The ABS will still release simple summary mortality statistics every month. The format of these summary statistics will be confirmed in coming publications.

Full monthly reporting on deaths was needed during the peak of the COVID-19 pandemic. The Director-General of the World Health Organization called an end to the emergency phase of the pandemic in May 2023. In line with this, the frequency of outputs can be reduced. Prior to the pandemic the ABS released information on causes of death annually.

Reducing the frequency of the Provisional Mortality Statistics publication will give the ABS capacity to provide official statistics on excess mortality every six months, rather than on the current ad hoc basis. The ABS released the article Measuring Australia's excess mortality during the COVID-19 pandemic until the first quarter 2023 on 19 July. It presents weekly and annual official excess mortality estimates for Australia during the COVID-19 pandemic until the first quarter 2023 for Australia and states and territories.

The release schedule for data products related to the Provisional Mortality Statistics report from August-December of 2023 is as follows:

  • August: Detailed Provisional Mortality Statistics report.
  • September: Summary mortality statistics only.
  • October: Detailed Provisional Mortality Statistics report.
  • November: Summary mortality statistics only.
  • December: Detailed Provisional Mortality Statistics report.
  • An article on excess mortality and articles on deaths associated with COVID-19 will also be released, with time frames to be confirmed.

Baseline comparisons

The purpose of a baseline is to provide a typical year (or combination of years) to compare the current year to. Deaths for 2023 will have two comparisons points - they will be compared to both deaths occurring in 2022 and a baseline period consisting of the average number of deaths occurring in the years of 2017-2019, 2021.

There were 190,775 deaths which occurred in 2022. This is significantly higher than usual and is not considered to be a typical year for mortality in Australia. Therefore 2022 has not been included in the baseline average and is instead presented separately in graphs and tables. The baseline average presented in this report remains as the average of the years 2017-19 and 2021. 2020 is not included in the baseline for 2022 data because it included periods where numbers of deaths were significantly lower than expected and is similarly not considered to be a typical year for mortality in Australia.  

These counts serve as a proxy for the expected number of deaths, so comparisons against baseline or the previous year can provide an indication of whether mortality is higher or lower than expected in a given year. The minimum and maximum baseline counts are also included to provide an indication of the range of previous years. Minimums and maximums for any given week can be from any of the years included in the baseline.

While this publication can provide an indication of where counts of deaths are above or below expectations, it does not provide official estimates of excess mortality. Using the number of deaths from the previous years as the predictor for the expected number of deaths does not take into account changes in population size and age-structures of that population, as well as expected improvements in mortality rates over time.

Official mortality estimates can be found in the article Measuring Australia's excess mortality during the COVID-19 pandemic until the first quarter 2023. It presents weekly and annual official excess mortality estimates for Australia during the COVID-19 pandemic until the first quarter 2023 for Australia and states and territories.

Age-standardised death rates can be accessed via the data downloads tab in this publication. 

Counts of deaths for 2015-2022 are included in the baseline data cubes of the data downloads section of this report. Customised baselines are able to be created from these data cubes. 

COVID-19 mortality

The ABS publishes two regular reports that provide preliminary information on mortality during the COVID-19 pandemic, Provisional Mortality Statistics and COVID-19 Deaths in Australia articles. These reports provide information on different time periods and serve different purposes.

Provisional Mortality Statistics focus on monitoring patterns of mortality (by all-causes and specified leading causes of death) and highlight any changes potentially associated with the COVID-19 pandemic. Data must be sufficiently complete to detect such changes, and as such these reports are only released once the majority of deaths that occurred in a particular period have been registered and reported.   

COVID-19 Mortality in Australia articles focus on all COVID-19 deaths registered and reported up until a specified time. These articles include important information about COVID-19 deaths, including demographic details, comorbidities and consequences of the disease. While it is recognised data will be incomplete, it can still indicate emerging trends or changes among these deaths. The most recent article on COVID-19 mortality covering deaths that occurred and were registered up until 31 July 2023 can be accessed through the articles link on this page. 

Australian deaths by week

All-cause deaths

Tracking the number of deaths against historical averages for similar time periods provides an initial indication of when a change in the pattern of mortality may occur. This is of particular relevance because of the many potential public health impacts of the COVID-19 pandemic.

For all deaths:

  • In 2023, there were 73,423 deaths that occurred by 31 May and were registered by 31 July. This is 8,564 deaths (13.2%) more than the baseline average, but 2,963 (3.9%) less than in 2022.
  • In May 2023 there were 16,348 deaths, 15.0% more than the baseline average but 0.7% less than in 2022.
  • 14,479 of the deaths occurring in May 2023 were doctor certified and 1,869 were coroner referred.
  • The age-standardised death rate (SDR) for May was 45.2 deaths per 100,000 people, higher than the baseline average for this period (44.5) but lower than the rate for 2022 (47.2). 

Deaths are presented by counts only. Counts of death do not account for changes in population. See data downloads for weekly and monthly age-standardised death rate calculations. 

  1. Data is by occurrence.
  2. Data is provisional and subject to change.
  3. Weeks are defined as seven-day periods which start on a Monday as per the ISO week date system. Refer to 'Weekly comparisons' on the methodology page of this publication for more information regarding the data in this graph. Week 1 ended 9 Jan 2022 and 8 Jan 2023.
  4. The baseline includes deaths from 2017-19 and 2021.

Age-specific death rates

The following table shows age-specific death rates (deaths per 100,000 population) for different age groups by sex in May and for January to May 2023, presented with both those from 2022 and the baseline average.

May 2023

  • Across all age groups for both males and females, death rates were lower in May 2023 than in 2022.
  • When compared with the baseline average, the overall crude death rates (all ages) for males and females for May 2023 were higher. This was also seen in age-specific rates for both males and females aged 45-64 years, 65-74 years and 85 years and over. For all other age groups, the May 2023 rate was lower than the baseline average.
  • For all age groups, the male death rate is higher than the female death rate, with the rate ratio being larger in the middle age groups (45-64 years and 65-74 years).

Year to date, January to May 2023

  • For all persons, males and females in January to May 2023, the overall crude death rate and the age-specific rate for those aged 85 and over were higher than the baseline average but lower than the rate for the same period in 2022. This was also true for females aged 65-74 years. All other age groups had a lower death rate in 2023 than the baseline average or in 2022.
Age specific rates, 2023, 2022, Baseline
 MayJanuary - May
 20232022baseline average20232022baseline average
Persons      
0-443.7984.4154.32720.27621.71521.386
45-6429.53231.43829.231137.922148.062140.921
65-7499.304105.63197.927459.633487.699464.208
75-84298.972308.911298.7691364.3371458.3601369.032
85 and over1210.3541235.5171148.3745276.8015706.4595077.307
All ages61.38463.34456.077277.358294.901256.666
       
Males      
0-444.4945.7035.45325.61828.07127.531
45-6436.92139.51536.527175.140185.579176.000
65-74124.199133.653123.196570.283616.987580.030
75-84353.794368.704354.1301624.1231765.6541634.636
85 and over1307.4771356.9411231.5935650.7346169.0015470.024
All ages64.34867.38358.246292.835313.440268.928
       
Females      
0-443.0823.0933.18514.79015.19215.113
45-6422.40523.63422.172102.007111.800107.064
65-7476.34279.61073.967357.426367.464354.222
75-84249.804255.372250.2231131.4501183.4191136.056
85 and over1145.3431155.9541097.2185027.7495404.5644835.921
All ages58.46459.36453.938262.112276.634244.571

a. Data is by occurrence.
b. Data is provisional and subject to change.
c. Doctor certified and coroner referred deaths are included.
d. The baseline includes deaths from 2017-19 and 2021.
e. Age-specific death rates reflect deaths per 100,000 of the estimated resident population (ERP).

Mortality by selected causes of death

Cause-specific mortality

The following analysis is based only on doctor certified deaths (i.e. coroner referred deaths are not included). Any changes in patterns of coroner referral could affect counts of doctor certified deaths. Some conditions have higher coroner referral rates (ischaemic heart disease, cerebrovascular diseases and to a lesser extent, respiratory diseases and diabetes) so counts for those conditions would be more likely to be affected by such changes.

COVID-19

  • In May 2023 there were 595 deaths due to COVID-19 that were certified by a doctor. This is 32.6% lower than the 883 deaths in May 2022 and 47.3% higher than the 404 deaths in April 2023.
  • There have been 2,171 deaths due to COVID-19 certified by a doctor between January and May 2023. This is 52.1% lower than the 4,537 deaths recorded in the same period in 2022.
  • As the pandemic has progressed the number of people dying 'with' COVID-19 has increased. In May 186 people died with COVID-19 as a contributing factor to their death (ie. COVID-19 was certified on the death certificate but it was not the underlying cause of death).

Other causes of death

  • Deaths due to dementia including Alzheimer's disease were 17.8% above the baseline average in May 2023, and 2.1% above May 2022. Dementia deaths in 2023 in January to May were 16.1% above the baseline average but 3.0% below the same period in 2022.
  • The age-standardised death rate for deaths due to dementia was 4.0 per 100,000 people in May 2023. This compares to a baseline average rate of 3.9 and a rate of 4.1 in May 2022. 
  • Deaths due to other cardiac conditions were 15.2% above the baseline average in May 2023 and 1.7% higher than May 2022. Other cardiac deaths in 2023 in January to May were 15.5% higher than baseline average and 1.0% higher than the same period in 2022.
  • The age-standardised death rate for deaths due to other cardiac conditions was 2.4 per 100,000 people in May 2023. This compares to a baseline average rate of 2.3 and a rate of 2.4 in May 2022.
  • Deaths due to diabetes were 22.0% above the baseline average in May 2023, and 1.4% higher than May 2022. Diabetes deaths in 2023 in January to May were 18.7% higher than baseline average but 1.6% below the same period in 2022.
  • The age-standardised death rate for deaths due to diabetes was 1.3 per 100,000 people in May 2023. This compares to a baseline average rate of 1.2 and a rate of 1.4 in May 2022.
  • The number of deaths due to cancer was 8.1% above the baseline average in May 2023 and 1.7% above May 2022. Cancer deaths in January to May 2023 were 7.4% above baseline average and 0.9% above the same period in 2022.
  • Deaths due to respiratory diseases in May 2023 were 1.1% above baseline average and 3.6% higher than in 2022. Deaths due to respiratory diseases in January to May were 4.5% above baseline average and 3.4% above the same period in 2022. Of the 86 influenza deaths recorded in January to May 2023, 41 occurred in May.
  • Deaths due to ischaemic heart disease were 5.4% below the baseline average in May 2023 and 9.0% lower than May 2022. In January to May 2023 the number of ischaemic heart disease deaths was 5.4% below baseline and 9.5% lower than in the same period in 2022.
  • Deaths due to cerebrovascular disease were 2.0% higher than the baseline average in May 2023 and 0.4% higher than May 2022.  Cerebrovascular disease deaths from January to May 2023 were 3.3% below baseline average and 2.3% below the same period in 2022.
Doctor certified deaths by cause, 2023, 2022, Baseline
   MayYear to date - January - May
   20232022baseline average20232022baseline average
Cancer4,4244,3504,09121,01520,82819,573
Dementia1,5801,5471,3416,8737,0875,918
Respiratory diseases1,2281,1851,2155,2585,0875,030
 Chronic lower respiratory diseases6826486722,9102,8952,840
 Influenza and pneumonia248232239919827913
  Pneumonia207185211833778830
Ischaemic heart disease1,2211,3421,2915,3735,9405,682
Other cardiac conditions  9038887843,9173,8803,390
Cerebrovascular diseases8548518373,6633,7483,787
COVID-19595883na2,1714,537na
Diabetes4944874052,1732,2081,831

a. Only doctor certified deaths are included.
b. Data is by date of occurrence.
c. The baseline includes deaths from 2017-19 and 2021

Timeliness and completeness of data

Each death registration in the national mortality dataset has 3 dates:

  • The date on which the death occurred.
  • The date on which the death was registered with the jurisdictional Registry of Births Deaths and Marriages (RBDM).
  • The date on which the death was lodged with the ABS.
     

When looking to measure change over time, the completeness of data for the most recent period is important. When data is received each month by the ABS, the lag between the date of death and the date of registration means that approximately 40-50% of reported registrations are of deaths that occurred in the month being reported. The remainder are deaths that occurred in earlier months.

For deaths which are doctor certified, approximately 95% of registrations are received after a second month of reporting, while for coroner certified deaths, the proportion of registrations reported after a second month is lower (approximately 78%). This is because it takes longer for coroners to certify deaths due to the complexity of investigations.

As coroner referred deaths make up a smaller proportion of all deaths (approximately 11-14%) their inclusion in all-cause data only reduces the overall completeness by around 2%. This should be considered when making comparisons with historical counts, noting also that the level of completeness will be higher for the start of any given month than the end of that month. 

This pattern of registration and reporting is highlighted in the table below, which also shows the slight variation in reporting timelines by cause of death. 

Estimated completeness of death registrations received by the ABS (a)(b)(c)
 Total proportion reported at the end of
Cause of death

the month the death occurred (%)

the month after the death occurred (%)

two months after the death occurred (%)

All cause - doctor and coroner certified43.192.797.1
All cause - doctor certified only44.593.997.9
All cause - coroner certified only24.677.588.1
Ischaemic heart disease (I20 – I25)45.294.998.4
Other cardiac conditions (I26 – I51)45.595.098.6
Cerebrovascular diseases (I60 – I69)45.195.298.6
Respiratory diseases (J00 – J99)45.695.398.7
Chronic lower respiratory diseases (J40 – J47)45.394.298.1
Influenza and pneumonia (J09 – J18)45.495.498.8
Cancer (C00 – C97, D45, D46, D47.1, D47.3 – D47.5)46.895.398.6
Diabetes (E10 – E14)43.892.897.1
Dementia, including Alzheimer’s disease (F01, F03, G30, G31.0, G31.8)46.395.498.7

a. Percentages are based on the date registrations were received by the ABS for deaths that occurred in 2017-2019 and 2021.
b. Only doctor certified deaths are included for cause-specific data.
c. Data is provisional and subject to change.
 

The graphs below show how numbers of deaths for each period have increased over time as additional registrations that occurred in previous months are reported to the ABS. Due to these increases, data for the most recently reported periods should be treated with caution.

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Provisional Mortality Statistics, Jan - May 2023

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Previous catalogue number

This release previously used catalogue number 3303.0.55.004

Methodology

Provisional Mortality Statistics methodology, Jan - May 2023

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