Mortality estimates for years up to 2005 are based on Australian Bureau of Statistics death registration data. Data from 2006 onwards were provided by the Australian Coordinating Registry, Cause of Death Unit Record File; the data for the most 2 recent years are preliminary (SAPHaRI, Centre for Epidemiology and Evidence, NSW Ministry of Health)
Only NSW residents are included. Deaths are classified using ICD-10 classification and distributed according to ICD-10 chapters. Separate ICD-10 chapters on diseases of the nervous system, eye and ear and chapters on conditions relating to pregnancy, perinatal period and congenital diseases are combined into single categories in the analysis.
Rates were age-adjusted using the Australian population as at 30 June 2001.
Counts of deaths for the latest year of data include an estimate of the number of deaths occurring in that year but registered in the next year.
LL/UL 95%CI = lower and upper limits of the 95% confidence interval for the point estimate.
In order to complete a death registration in Australia, the death must be certified by either a doctor using the Medical Certificate of Cause of Death, or by a coroner. Natural causes are predominantly certified by doctors, whereas External and Unknown causes or unaccompanied deaths are usually certified by a Coroner. Approximately 85-90% of deaths each year are certified by a doctor and the remainder is reported to a Coroner. The death is registered in the state in which the death occurred, rather than the state in which the person resides. The Australian Cause of Death Statistics System is outlined by the Australian Bureau of Statistics (ABS) at https://www.abs.gov.au/AUSSTATS/abs@.nsf/Lookup/3303.0Explanatory%20Notes12018?OpenDocument
The ABS have implemented a revision process for Coroner certified deaths. Data are deemed preliminary when published for the first time, revised when published the following year and final when published two years after initial publication. This revision process, and the impact on specific causes are described at https://www.abs.gov.au/AUSSTATS/abs@.nsf/Lookup/3303.0Explanatory%20Notes12018?OpenDocument.
The ABS publishes two publications every September concerning deaths in the previous calendar year: Deaths, Australia (Catalogue Number 3302.0) and Causes of death, Australia (Catalogue Number 3303.0), which include breakdowns at the State and Territory level. These are usually published nine months following the most recent reported year.
Prior to 2008, the NSW Ministry of Health obtained data on causes of death of all NSW residents from the Australian Bureau of Statistics (ABS). This covers deaths registered from 1964 to 2005.
For deaths registered from 2006 onwards, the NSW Ministry of Health receives coded cause of death data from the Australian Coordinating Registry (ACR). The ACR is an agency appointed to coordinate access of coded cause of death unit record data on behalf of the Registrars of Births Deaths and Marriages in each state or territory as well as the Australian Bureau of Statistics and National Coronial Information System. The coordinating registry undertakes the coordination and management of the designated activity. The underlying legal responsibility is retained by the collective Registrars. The coding of the causes of death is still undertaken by the ABS but the process to obtain the data is administered by the ACR.
The ACR provides the NSW Ministry of Health with a unit record file of all deaths, either occurring in NSW or to NSW residents who died interstate, approximately sixteen to seventeen months following the most recent reported year to allow a detailed analysis of deaths data. This analysis includes comparisons of causes of death in NSW by sub-state geographies (e.g. by Local Health District or Local Government Area) and by other dimensions and sub-populations, such as remoteness categories and socioeconomic groups. Causes of death data are also used throughout the NSW public health system for a variety of health system planning, reporting, research and evaluation needs.
There are differences in how deaths data are reported in HealthStats NSW and by the ABS, including differences in how deaths are allocated to specific years and differences in the populations used for calculating rates.
1. Death count by year of registration and by year of occurrence
There is usually an interval between the occurrence and registration of a death which is related to the time of year or whether a death is referred to a Coroner. The registration of deaths which occur in November and December are likely to be delayed until the following year, for example, of all deaths in NSW registered in 2013, 6.9% had occurred in 2012 or earlier (ABS 3302.0).Deaths data reported by the ABS for the latest year are based on the year of registration therefore do not include deaths which occurred in that year but where registration was delayed.
Deaths data reported in HealthStats NSW are based on the year of occurrence of the death to provide a better match for the population denominator when calculating rates. Estimates of missing deaths for the latest year due to delayed registration (i.e. due to time of year or Coronial cases) are imputed for each cause and included in the count reported in HealthStats NSW. A small percentage of death registrations may be delayed for more than one year. All deaths figures reported in HealthStats NSW are updated historically (e.g. in trends) when new data becomes available.
2. Different population projection data
For the calculation of rates, the NSW Ministry of Health uses population projection estimates from the NSW Department of Planning, Industry, and Environment. The estimated residential populations which are not projected are the same as those published by the ABS and are currently based on the 2016 Census. See Methods associated with indicators in topics Demography (or Population) for further discussion of population estimates.
Australian Bureau of Statistics. Deaths, Australia, latest year. 3302.0. Canberra: ABS, . Available at http://www.abs.gov.au/ausstats/abs@.nsf/mf/3302.0
Australian Bureau of Statistics. Causes of Deaths, Australia, latest year. 3303.0. Canberra: ABS, . Available at http://www.abs.gov.au/ausstats/abs@.nsf/mf/3303.0
Australian Bureau of Statistics. Multiple Cause of Deaths, Australia, 1997-2001. 3319.0.55.001. Canberra: ABS, . Available at http://www.abs.gov.au/ausstats/abs@.nsf/mf/3319.0.55.001
|Description||ICD-10 & ICD-10-AM||Comments|
This indicator uses underlying cause of death only.
All records are included for NSW residents only.
|Neoplasms - malignant||C00-C99|
|Neoplasms - other than malignant||D00-D48|
|Blood and immune diseases||D50-D89|
|Nervous and sense disorders||G00-H95|
|Circulatory diseases||I00-I99, Excluding I84|
|Digestive system diseases||K00-K93, I84|
|Maternal, neonatal and congenital causes||O00-Q99|
|Ill defined and unknown causes||R00-R99, U00-U49|
|Injury and poisoning (all external cause codes)||S00-T98, U50-U73, V01-Y89|
Haemorrhoids were classified as diseases of the circulatory system under ICD-10-AM Seventh edition (I84). In ICD-10-AM Eighth edition haemorrhoids are classified with diseases of the digestive system (K64). Consequently, haemorrhoids are not included in the total count of diseases of circulatory.
• In 2018, there were 53,456 deaths of residents in NSW. The number of deaths has increased by around 13% in the 10 years since 2009. However, the death rate has decreased by around 12% over this period due to an increasing population.
• The age standardised death rate was 506.4 per 100,000 population in NSW in 2018.
• In 2018 the age-adjusted male death rate was around 46% higher than the female death rate (610.5 compared with 417.0 per 100,000 population respectively). This difference has declined from 52% over the last 10 years since 2009.
• In 2018, there were 294 infant deaths in NSW, which was 2.7 deaths per 1,000 live births. The infant mortality rate in Australia was 3.1 deaths per 1,000 live births in 2018.
Death or mortality statistics are published at regular intervals in most countries and usually show numbers and rates of deaths by sex, age and other variables. A death rate is an estimate of the proportion of the population that dies during a specified period (Last 2001). In this report it is expressed as the number of deaths per 100,000 population (person-years).
The proportion of people in different age groups varies between geographic areas and over time and can therefore influence death rate comparisons within these dimensions. Age-adjustment (also known as age-standardisation) allows for the comparison of death rates across geographic areas and over time after removing the effects of the different age structures in these dimensions.
Refer to the Methods tab for more information.
Death rates from all causes are low in Australia and NSW by international standards. The World Health Organization classifies Australia into an ‘A stratum’, with very low child and adult mortality. Comparisons by country reveal that the probability of dying between 15 and 60 years per 1,000 population (WHO calculated adult mortality rate) spans from around 50 in selected developed countries to just under 500 in some African countries. Australia’s rate was 61 per 1,000 in 2016, which placed it 16th out of 183 reported countries (WHO 2018).
World Health Organization. World health statistics. Geneva: WHO. Available at: https://apps.who.int/gho/data/node.main.686?lang=en
Interventions aiming to reduce deaths rates in NSW are embedded in strategies dealing with specific health issues or specific disadvantaged populations.