Causes of death (hlth_cdeath)

National Reference Metadata in Single Integrated Metadata Structure (SIMS)

Compiling agency: Directorate for Health Information and Research, Ministry for Health Malta


Eurostat metadata
Reference metadata
1. Contact
2. Metadata update
3. Statistical presentation
4. Unit of measure
5. Reference Period
6. Institutional Mandate
7. Confidentiality
8. Release policy
9. Frequency of dissemination
10. Accessibility and clarity
11. Quality management
12. Relevance
13. Accuracy
14. Timeliness and punctuality
15. Coherence and comparability
16. Cost and Burden
17. Data revision
18. Statistical processing
19. Comment
Related Metadata
Annexes (including footnotes)
 



For any question on data and metadata, please contact: Eurostat user support

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1. Contact Top
1.1. Contact organisation

Directorate for Health Information and Research, Ministry for Health Malta

1.2. Contact organisation unit

National Mortality Registry

1.5. Contact mail address

Directorate for Health Information and Research

95, Gwardamangia Hill,

Gwardamangia

PTA 1313


2. Metadata update Top
2.1. Metadata last certified 17/01/2024
2.2. Metadata last posted 17/01/2024
2.3. Metadata last update 17/01/2024


3. Statistical presentation Top
3.1. Data description

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

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".

CoD data are derived from death certificates. The information provided in the medical certificate of cause of death is mapped to the International Statistical Classification of Diseases and Related Health Problems (ICD).

3.2. Classification system

Eurostat's CoD statistics build on standards set out by the World Health Organisation (WHO) in the International Statistical Classification of Diseases and Related Health Problems (ICD).

The regional breakdown is based on the Nomenclature of Territorial Units for Statistics (NUTS 2).

 

Classification and updates applied by years

 

Data year ICD classification used (ICD-9, ICD-10) (3 or 4 chars) For ICD-10: updates used
2011  ICD-10 2011
2012  ICD-10 2011
2013  ICD-10 2013
2014  ICD-10 2014
2015  ICD-10 2015
2016  ICD-10 2016
2017  ICD-10 2016
2018  ICD-10 2016
2019  ICD-10 2016
2020 ICD-10 2020
2021 ICD-10 2021
3.3. Coverage - sector

Public Health

3.4. Statistical concepts and definitions

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

3.4.1. National definition used for usual residency

Persons who have been residing regularly in Malta for at least the previous year  

3.4.2. Stillbirth definition and characteristics collected

Deaths in foetuses from 22 weeks gestation onwards &/or 500g at birth or over.

Gestational age and birthweight are collected 

3.5. Statistical unit

The statistical units are the deceased persons and the stillborns, respectively.

3.6. Statistical population

All deaths of residents occurring in the Maltese Islands or residents dying abroad for whom we receive a death certificate are included. Deaths of non resients dying in the Maltese Islands are counted separetly.

3.6.1. Neonates of non-resident mothers

Neonates of non-resident mothers are only considered residents if the father is a resident. 

3.6.2. Non-residents

Statistics on non- residents dying in Malta are also collected in the same National Mortality Register and data is comprehensive. However statistics on non residents are usually issued separately unless specifically asked to include. 

3.6.3. Residents dying abroad

Any death certificates for residents dying abroad which are received are included in the national data. However not all these death certificates will include a cause of death as this depends on the country of death. Also it is not known how comprehensive data collection for residents dying abroad is. However, for anyone who is buried in Malta we receive a death certificate.  

3.7. Reference area

Data on causes of death is collected for the whole of Malta i.e. the Maltese Islands

3.8. Coverage - Time

Data in electronic format using ICD-10 is available from 1995. 

3.9. Base period

Not applicable.


4. Unit of measure Top

The unit is number.


5. Reference Period Top

Latest year provided is deaths for the calender year 2021


6. Institutional Mandate Top
6.1. Institutional Mandate - legal acts and other agreements

CoD data was submitted to Eurostat on the basis of a gentleman's agreement established in the framework Eurostat's Working Group on "Public Health Statistics" until data with reference year 2010.

A Regulation on Community statistics on public health and health and safety at work (EC) No 1338/2008 was signed by the European Parliament and the Council on 16 December 2008. This Regulation is the framework of the data collection on the domain.

Within the context of this framework Regulation, a Regulation on Community statistics on public health and health and safety at work, as regards statistics on causes of death (EU) No 328/2011 was signed by the European Parliament and the Council on 5 April 2011. 

CoD data according to this regulation is submitted to Eurostat since reference year 2011.

6.2. Institutional Mandate - data sharing

Mortality data is transmitted on a yearly basis to Eurostat and WHO. This does not include personal identifiers.

Data collection requested by researchers need to complete online form found on the Directorate for Health Information and Research Website and may require other permissions depending on the nature of the data request.

Introduction (gov.mt)

Request For Data Form (gov.mt)

Registries (gov.mt)


7. Confidentiality Top
7.1. Confidentiality - policy

All data is collected and processed in accordance with the General Data Protection Regulation, adopted in the Data Protection Act XX of 2018. On the 8th of October 2019, Legal Notice 263 of 2019 was published. This Legal Notice is intended to enact the Processing of Personal Data (Secondary Processing) (Health Sector) Regulations (S.L. 528.10 of the Laws of Malta) (“the Regulations”).

7.2. Confidentiality - data treatment

Only aggregate data is published and available online.


8. Release policy Top
8.1. Release calendar

Not applicable

8.2. Release calendar access

Not applicable

8.3. Release policy - user access

Users may access published data online e.g. the Annual Mortality Report.

They may also request data by completing the online request forms:

Request For Data Form (gov.mt)


9. Frequency of dissemination Top

Annual Dissemination


10. Accessibility and clarity Top
10.1. Dissemination format - News release

Annual Mortality Report

Ad hoc Fact Sheets

10.2. Dissemination format - Publications

Annual Mortality Report

Ad hoc Fact Sheets

Deaths (gov.mt)

10.3. Dissemination format - online database

International databases which include data for Malta are:

Eurostat: https://ec.europa.eu/eurostat/data/database

WHO: https://gateway.euro.who.int/en/

10.3.1. Data tables - consultations

Not applicable

10.4. Dissemination format - microdata access

Access to Micro data with causes of death is only possible after a request to our department which vets the requests and may refuse or accept, or accept seeking further permissions e.g. data protection, ethical approval.

Request For Data Form (gov.mt)

 

10.5. Dissemination format - other

Not applicable

10.5.1. Metadata - consultations

Not applicable

10.6. Documentation on methodology

A Standard Operation Procedure is available which details all the steps involved in the day to day work of the Mortality Register.

10.6.1. Metadata completeness - rate

Not applicable

10.7. Quality management - documentation

Not applicable


11. Quality management Top
11.1. Quality assurance

Rules and updates of the International Classification of Diseases ICD-10 are followed as well as automated coding IRIS software is used. General checks to demographic information are also regularly done before submitting any data. 

11.2. Quality management - assessment

Not applicable


12. Relevance Top
12.1. Relevance - User Needs

Users of mortality data include both national and international organisations such as the National Statistics Office of Malta, Eurostat, WHO, Euromomo and EMCDDA.

Locally users include policy makers both within the Ministry of Health and other Ministries as well as other entities, researchers and students.  

12.2. Relevance - User Satisfaction

Not applicable

12.3. Completeness

Completeness of the core variables for Mortality data is around 98%

12.3.1. Data completeness - rate

1. For mandatory variables:

data completeness is around 98% for mandatory variables

 

2. For voluntary variables:

data completeness is around 95%

 

3. For additional variables:

  • External CoD

for cause of death completeness varies depending on autopies which may take time for them to be finalised. However other than that external COD are around 95% complete.

  • Place of occurrence for external CoD

80% was known in 2021

  • Activity for external CoD 

not known


13. Accuracy Top
13.1. Accuracy - overall

Close liaison is kept with the Police Authorities, the Mortuary Department and with the Public Registry. We also have access to other medical registers (e.g. cancer registers) from were we get further information as to the cause of death when needed.

However no formal assessment has been recently carried out.

13.2. Sampling error

Not applicable. Data collection is from administrative sources.

13.2.1. Sampling error - indicators

Not applicable.

13.3. Non-sampling error

refer to specific errors below

13.3.1. Coverage error

Coverage is estimated to be close to 98% overall. However some variables on the death certificate are more well completed then others. 

13.3.1.1. Over-coverage - rate

Minimal if any

13.3.1.2. Common units - proportion

Not applicable. Data collection is from administrative sources.

13.3.2. Measurement error

Data on the decesaed persons is entered on a database which links demographics from a common database and therefore minimises demographic errors. The main demographic data namely age and sex and also cross-checked with individual data from the National Statistics Office on a yearly basis. All underlying causes of death entered are double checked.

13.3.3. Non response error

Missing variables are mainly found in variables of occupation and marital status. These are often left unknown unless other sources can be linked to complete the missing value. 

13.3.3.1. Unit non-response - rate

Missing information on causes of death is very low, often less than 1%. These are often death certificates which are still provisional and awaiting a final cause of death - pending investigation. 

13.3.3.2. Item non-response - rate

not applicable

13.3.4. Processing error

All data is checked and processed according to national and international guidelines.

13.3.5. Model assumption error

Not applicable.


14. Timeliness and punctuality Top
14.1. Timeliness
Year Number of months between the end of the reference year and the publication at national level
2011  18-24 months
2012  18-24 months
2013  18-24 months
2014  18-24 months
2015  18-24 months
2016  18-24 months
2017  18-24 months
2018  18-24 months
2019  18-24 months
2020 18-24 months
2021 18-24 months
14.1.1. Time lag - first result

Not applicable.

14.1.2. Time lag - final result

Not applicable.

14.2. Punctuality

From data collection with reference year 2011 onwards, Eurostat asks for the submission of final data at national and regional level and related metadata for the year N at N+24 months, according to the Implementing Regulation (EC) No. 328/2011, Article 4.

14.2.1. Punctuality - delivery and publication
Reference year Time between the end of the reference year and the delivery of final data to Eurostat
2011 24 months
2012 24 months
2013 24 months
2014 24 months
2015 24 months
2016 27 months
2017 24 months
2018 27 months
2019 24 months
2020 24 months
2021 24 months


15. Coherence and comparability Top
15.1. Comparability - geographical

Data on the whole of Malta is collected in one national register, so no issues with comparability between regions

15.1.1. Asymmetry for mirror flow statistics - coefficient

Not applicable.

15.2. Comparability - over time

Some issues which may effect comparability over time include changes in the ICD version, changes in the ICD rules and also changes in the coders at a local level.

15.2.1. Length of comparable time series

Last change in ICD version was in 1995 when ICD-10 was implemented, so a break in series would be before that mainly.

15.3. Coherence - cross domain

Causes of death are checked with other medical registers e.g. cancer registry

Additional informatiom on external causes of death e.g. for accidents are obtained from newspapers, suicides from the police

Demograpahic information is checked with a general demogrpahic database and also checks are done with the NSO.   

15.3.1. Coherence - sub annual and annual statistics

Not applicable, only annual data are available.

15.3.2. Coherence - National Accounts

Not applicable.

15.4. Coherence - internal

No differences


16. Cost and Burden Top

Currently the main new costs envisiaged are the implementation of ICD-11 and its associated IT software and training as well as updating the mortality electronic database to be able to autome certain requests. 


17. Data revision Top
17.1. Data revision - policy

Not applicable

17.2. Data revision - practice

Not applicable

17.2.1. Data revision - average size

Not applicable


18. Statistical processing Top
18.1. Source data

The main source of data is the Medical Death Certificate. As described, additional sources of information are used to improve the accuracy of the mortality statistics when possible. 

18.2. Frequency of data collection

Annual.

18.3. Data collection

The main source of information is the medical death certificate. Currently all causes of death are coded using ICD-10.

18.3.1. Certification

Table on certification (Percentage)

Year

All doctors (certifiers) trained in the certification All doctors (certifiers - pathologists or others doctors) trained in the post-mortem examination (autopsies) Certificates filled by persons who attended a course on certification or post-mortem examination Death certificates that are queried (only queries related to medical part of the death certificate should be included) Replies received for queries sent Deaths where the underlying cause is changed as a result of the query Death certificates with incorrect sequence
2011  not available  not available  not available around 5-10% (includes querying other sources of information)  nearly all received not applicable  no recent audit
2012  not available  not available  not available around 5-10% (includes querying other sources of information)  nearly all received  not applicable  no recent audit
2013  not available  not available  not available  around 5-10% (includes querying other sources of information)  nearly all received  not applicable  no recent audit
2014  not available  not available  not available around 5-10% (includes querying other sources of information)  nearly all received  not applicable  no recent audit
2015  not available  not available  not available around 5-10% (includes querying other sources of information)  nearly all received  not applicable  no recent audit
2016  not available  not available  not available around 5-10% (includes querying other sources of information)  nearly all received  not applicable  no recent audit
2017  not available  not available  not available around 5-10% (includes querying other sources of information)  nearly all received  not applicable  no recent audit
2018  not available  not available  not available around 5-10% (includes querying other sources of information)  nearly all received  not applicable  no recent audit
2019  not available  not available  not available around 5-10% (includes querying other sources of information)  nearly all received  not applicable  no recent audit
2020 not available not available not available around 10-20% (includes querying other sources of information)  nearly all received  not applicable  no recent audit
2021 not available not available not available around 10-20% (includes querying other sources of information) nearly all received not applicable no recent audit
18.3.2. Automated Coding
Data year Use of any form of automated coding System used (IRIS, MICAR, ACME, STYX, MIKADO, others)
2011 no  
2012 no  
2013 yes IRIS- to check UCD
2014 yes IRIS- to check UCD
2015 yes IRIS- to check UCD
2016 yes IRIS- to check UCD
2017 yes IRIS- to check UCD
2018 yes IRIS- to check UCD
2019 yes IRIS- to check UCD
2020 yes IRIS- to check UCD
2021 yes IRIS- to check UCD
18.3.3. Underlying cause of death
Data year Only manual selection of underlying cause Manual with ACME decision tables (if yes, version of ACME) ACS utilising ACME decision tables (if yes, version of ACME) Own system (ACS without ACME) Comments
2011  YES        
2012  YES        
2013   YES , 2013     IRIS is used when in doubt regarding UCD
2014   YES, 2014     IRIS is used when in doubt regarding UCD
2015   YES, 2014     IRIS is used when in doubt regarding UCD
2016   YES, 2016     IRIS is used when in doubt regarding UCD
2017   YES, 2016     IRIS is used when in doubt regarding UCD
2018   YES, 2018     IRIS is used when in doubt regarding UCD
2019   YES, 2019     IRIS is used when in doubt regarding UCD
2020   YES, 2020     IRIS is used when in doubt regarding UCD
2021   YES, 2021     IRIS is used when in doubt regarding ICD
18.3.4. Availability of multiple cause
Data year Information stored in the national CoD database, UC (Underlying cause) or MC (Multiple cause)
2011 UCD & MC
2012 UCD & MC
2013 UCD & MC
2014 UCD & MC
2015 UCD & MC
2016 UCD & MC
2017 UCD & MC 
2018 UCD & MC
2019 UCD & MC 
2020 UCD & MC
2021 UCD & MC
18.3.5. Stillbirths and Neonatal certificates

No there is no different death certificate for stillbirths or neonatal deaths. On the general death certificate there is a section regarding birth weight and gestational age to be completed only for infants.

18.4. Data validation

Data on the decesaed persons is entered on a database which links demographics from a common database and therefore minimises demographic errors. The main demographic data namely age and sex and also cross-checked with individual data from the National Statistics Office on a yearly basis. All underlying causes of death entered are double checked.

Once data for a particular year is produced this is also compared to previous year to check for any major differences. 

18.4.1. Coding

Description of coding procedure (central level, distributed among other bodies, etc.):

 Coding is done by a nurse and then checked by a public health doctor

Description of the procedures to detect errors (i.e.errors such as potential inconsistency in the death certificate or error due to mistake when filling the deaths certificates):

 cross checks with other sources of information e.g. other medical registers are used

Description of the measures taken in order to solve detected errors:

 errors are corrected and documented

Coding performed by a certifier:

 not done locally

Estimation of the percentage of autopsy from which information is available for coding:

  8-9%

Description of double coding exercises and rate of codification errors for underlying cause of death:

 not done

18.4.2. Unspecified CoD code

ICD codes for the underlying cause (% of the Total)

Year Unspecified CoD (for ICD10: R00-R99 codes, for ICD9: 780-790 codes) Unknown CoD (for ICD10: R98-R99 codes, for ICD9: 799.9, 798.9, 798.2 codes) Deaths due to senility (for ICD10: R54 code, for ICD9: 797 code) Deaths due to exposure to unspecified factor (for ICD10: X59 code, ICD9: 928.9 code)
2011 0.45% 0.03% 0.12% 0%
2012 0.52% 0.12% 0.12% 0%
2013 0.66% 0.30% 0.03% 0.03%
2014 0.63% 0.27% 0.06% 0%
2015 0.45% 0.20% 0.11% 0.03%
2016 0.50% 0.15% 0.12% 0%
2017 0.41% 0.16% 0.16% 0%
2018 0.48% 0.29%  0.08% 0.05%
2019 0.72% 0.51% 0.08% 0.05%
2020 0.58% 0.34% 0.10% 0.05%
2021 0.48% 0.26% 0.05% 0%
18.4.3. Unknown country or region

Unknown country/region (%) for residents and non-residents who died in the country

 

Year Residents Non-residents
Unknown residency (NUTS2) Unknown occurrence (NUTS2) Unknown residency (country) Unknown residency (NUTS2) Unknown occurrence (NUTS2)
2011 0% 0% 3.17% unknown 0%
2012 0% 0% 1.85% unknown 0%
2013 0% 0%  0% unknown 0%
2014 0% 0% 2.90% unknown 0%
2015 0% 0% 1.1% unknown 0%
2016 0% 0% 0% unknown 0%
2017 0% 0% 0% unknown 0%
2018 0% 0% 1.27% unknown 0%
2019 0% 0% 0.03% unknown 0%
2020 0% 0% 0% unknown 0%
2021 0% 0% 0% unknown 0%
18.4.4. Validation of the coverage

We validate as much as possible with the Public Registry Department. 

18.5. Data compilation

Not applicable.

18.5.1. Imputation - rate

Not applicable.

18.6. Adjustment

No adjustments  to the data are done

When comparing with other countries the same standardised popluation is used.

18.6.1. Seasonal adjustment

Not applicable.


19. Comment Top

None


Related metadata Top


Annexes Top