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Reference metadata describe statistical concepts and methodologies used for the collection and generation of data. They provide information on data quality and, since they are strongly content-oriented, assist users in interpreting the data. Reference metadata, unlike structural metadata, can be decoupled from the data.

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Causes of death (hlth_cdeath)

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Reference Metadata in Single Integrated Metadata Structure (SIMS)

Compiling agency: Eurostat, the statistical office of the European Union

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Data on causes of death (COD) provide information on mortality patterns and form a major element of public health information.

The COD data refer to the underlying cause which - according to the World Health Organisation (WHO) - is "the disease or injury which initiated the train of morbid events leading directly to death, or the circumstances of the accident or violence which produced the fatal injury".

The data are derived from the medical certificate of death, which is obligatory in the Member States. The information recorded in the death certificate is according to the rules specified by the WHO.

Data published in Eurostat's dissemination database are broken down by sex, 5-year age groups, cause of death and by residency and country of occurrence. For stillbirths and neonatal deaths additional breakdowns might include age of mother and parity.

Data are available for Member States, Iceland, Norway, Liechtenstein, Switzerland, United Kingdom, Serbia, Turkey, North Macedonia and Albania. Regional data (NUTS level 2) are available for all of the countries having NUTS2 regions except Albania.

Annual national data are available in Eurostat's dissemination database in absolute number, crude death rates and standardised death rates. At regional level the same is provided in form of 3-years averages (the average of year, year -1 and year -2). Annual crude and standardised death rates are also available at NUTS2 level. Monthly national data are available for 21 EU Member States from reference year 2019 and in 24 Member States from reference year 2022 in absolute numbers and standardised death rates.

18 March 2025

The concepts and definitions are described in the Commission regulation (EU) No 328/2011, articles 2 and 3.

All the countries use the concepts and definitions as described in the regulation, except for the definitions of stillbirths and usual residence that may differ for a few countries. 

There are some additional concepts and definitions which refers to the data published in Eurostat's dissemination database:

The crude death rate describes mortality in relation to the total population. Expressed in deaths per 100 000 inhabitants, it is calculated as the number of deaths recorded in the population for a given period divided by population in the same period and then multiplied by 100 000. Crude death rates are calculated for 5-year age groups. At this level of detail, comparisons between countries and regions are meaningful. The crude death rate for the total population (all ages) however, is a weighted average of the age-specific mortality rates. The weighting factor is the age distribution of the population whose mortality is being observed. Thus, the population structure strongly influences this indicator for broad age classes. In a relatively 'old' population, there will be more deaths than in a 'young' one because mortality is higher for age groups referring to older ages. For comparisons, the age effect can be taken into account by using a standard population.

The (age-) standardised death rate is a weighted average of age-specific mortality rates. The weighting factor is the age distribution of a standard reference population. The standard reference population used is the European standard population. The new European Standard Population (ESP) is the unweighted average of the individual populations of EU Member States plus EFTA countries in each 5-years age band (with the exception of under 5 and the highest age-group of 95+). The ESP is calculated from on the basis of the 2010-based population projections, averaged over the period 2011-30. As method for standardisation, the direct method is applied.


Standardised death rates are calculated for the age group 0-64 ('premature death') and for the total of ages. As most causes of death vary significantly with people's age and sex, the use of standardised death rates improves comparability over time and between countries. For calculating crude and standardised death rates, the annual average population available in Eurostat's demography database is used. In case the data for age groups 85-89 years, 90-94 years and 95+ years was not available for the standardized deaths rate calculation, then the age group 85+ has been used as a proxy. However, the bias is likely to be relatively small. Indicators on fetal, peri- and neonatal mortality are consistent with definitions used in the Eurostat's demography database. 

Infant mortality rate per 1000 live births is calculated as the ratio of number of deaths of children under one year of age to the number of live births. The value is expressed per 1000 live births. 

Early neonatal mortality rate per 1000 live births is calculated as the ratio of the number of deaths at age day 0 to (and including) day 6 to the number of live births. The value is expressed per 1000 live births.

Late foetal mortality rate per 1000 births is calculated as the ratio of the number of stillbirths to 1000 births. The value is expressed per 1000 births.

Neonatal mortality rate per 1000 live births is calculated as the ratio of the number of deaths at age day 0 to (and including) day 27 to the number of live births. The value is expressed per 1000 live births.

Perinatal mortality rate per 1000 births is calculated as the number of stillbirths plus deaths at age day 0 to (and including) day 6 divided by the number of births. The value is expressed per 1000 births (see concept 3.4.2). 

In addition, data is published on Potential Years of Life Lost (PYLL). PYLL is an indicator estimating the potential years lost due to premature death, i.e. death before 70. It is calculated by summing the number of years between the age at death and 70 years for each premature death. PYLL rate is expressed per 100 000 age-standardised population under 70.

For the public health theme tables (hlth_cd_pbt), including treatable and preventable mortality, infant deaths, deaths due to infectious diseases, transport accidents, or dementia including Alzheimer's disease, the specific ICD codes to be used were compiled by Eurostat Task Force on Satellite Lists (final report issued in June 2014). Background information on treatable and preventable mortality, as well as the specific ICD codes used for preventable and treatable deaths and for infectious diseases can be found in the annex (Specifications of public theme tables).

Data in the public health theme tables are disseminated for absolute numbers (NR) and standardized death rates (RT).

Most of the datasets published in Eurostat's disssemination database are broken down by cause of death in accordance with the European shortlist from 2012. Additionally, a few new categories have been added recently:  

  • [B180-B182] Chronic viral hepatitis B and C
  • [K72-K75] Chronic liver disease (excluding alcoholic and toxic liver disease)
  • [U071] COVID-19, virus identified
  • [U072] COVID-19, virus not identified
  • [U_COV19_OTH] COVID-19, other

The statistical unit is the deceased person. 

The statistical population is the population of a given country, including both residents and non-residents. For the causes of death data collection the following definition of  'resident' is used: 'usual resident' in the place where a person normally spends the daily period of rest, regardless of temporary absences for the purposes of recreation, holidays, visits to friends and relatives, business, medical treatment or religious pilgrimage.

Most of the countries applies the definition as in the regulation ((i) those who have lived in their place of usual residence for a continuous period of at least 12 months before the reference date; or (ii) those who arrived in their place of usual residence during the 12 months before the reference date with the intention of staying there for at least 1 year).

The data are published for two different populations: the first one captures deaths of residents of a country and the second one captures all deaths occurring in a country.

The number for 'All deaths reported in the country (TOT_IN)' includes all deaths occurred in the reporting country, i.e. deaths of residents and non-residents in the reporting country.

The number for 'All deaths of residents in or outside their home country (TOT_RESID)' are calculated by taking data for residents dying in their home country (for example, deaths reported by Latvia for Latvian residents dying in Latvia) and adding the number of deaths that were reported by other countries to have died in their country (for example deaths of Latvian residents dying in Germany and reported by Germany).

The data covers all the deaths of residents and non-residents occurring in the Member States, Iceland, Norway, Liechtenstein, Switzerland, United Kingdom (until 2018), Serbia, Turkey, North Macedonia and Albania.

Data refer to the calendar year (i.e. all deaths occurring during the year) or calendar month.

The overall accuracy of the causes of death statistics is good. It is based on the information recorded in the death certificates, which is compulsory in all the countries.

All the compulsory variables requested in the regulation are collected by the countries. However, in a few cases it could be that some information is missing, such as the residence of the deceased person, the age or the sex, which are finally reported as “unknown”. 

The unit is number or rate per population.

The absolute numbers for EU aggregates are the sum of country numbers and are computed only when all the countries have submitted the data. Eurostat is not imputing any missing data.

The statistics on causes of death are based on the information provided on death certificates (administrative data). All deaths of residents and non-residents happening in the country are counted. In all the Member States, the medical certification of death is an obligation. Most countries already use WHO's international standard model for all but perinatal deaths (0 to 1 week). For perinatal deaths, WHO recommends a specific form, which is less frequently applied. The objective of the medical certificate of cause of death is to allow the certifier to enter as clearly and completely as possible the causes of death, i.e. describing the sequence of diseases and conditions leading to the death, mentioning other contributing conditions etc. In most countries, the medical certificates of cause of death are forwarded to the statistical office or other institution for centralised coding.

Some countries use secondary data sources in order to capture more detailed information or to check the data registered in the death certificates.

Annual.

Commision Regulation (EU) No 328/2011 allows countries to transmit statistics on the causes of death up until 2 years after the end of the reference year. Eurostat and countries make efforts to increase the timeliness by putting in place a voluntary data transmission deadline at 18 months after the reference year. Eurostat also disseminated all statistics that can be calculated as soon as possible after a country has transmitted their data. The time needed by countries to process the deaths certificates and to have the data ready for national publication differs quite a lot but usually it lasts from 6 months to 26 months.

Eurostat usually disseminated all indicators in the first quarter of the year two years after the reference year.

Comparability is good as countries are using the same standards and definitions. There are no inconsistences in data reporting between regions of a country reported to Eurostat.

There is a break in series in 2011, when Commission regulation No 328/2011 entered into force and some concept were revised (place of occurrence/residence and age groups). Additionally, before 2011 different classification systems for coding the cause of death could be used. 

Some countries have reported some other break in series that are described in their national reference metadata files, attached to this report.