ISTAT - Istituto Nazionale di Statistica
COD Single Integrated Metadata Structure (SIMS) (COD_SIMS_MSD 1.0 ESTAT)
Causes of death
2018 - A0
1. Contact
1.1 Contact organisation
Istat - Italian National Statistical Institute
1.2 Contact organisation unit
SWC - Division for integrated system for health, social assistance and welfare
1.3 Contact name
Process manager: Stefano Marchetti.
Contact for quality reporting: Stefano Marchetti, Marilena Pappagallo
1.4 Contact person function
Process manager: Stefano Marchetti - Division for integrated system for health, social assistance and welfare
Contact for quality reporting: Stefano Marchetti - Division for integrated system for health, social assistance and welfare
Marilena Pappagallo - Division for integrated system for health, social assistance and welfare
1.5 Contact mail address
Viale Liegi, 13 00198 Rome Italy
1.6 Contact email address
Process manager email: stmarche@istat.it.
Contact for quality reporting email: stmarche@istat.it, pappagal@istat.it
1.7 Contact phone number
Process manager telephone: +390646737396.
Contact for quality reporting telephone: +390646737396, +390646737405
1.8 Contact fax number
2. Metadata update
2.1 Metadata last certified
2.2 Metadata last posted
2.3 Metadata last update
3. Statistical presentation
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 medical certification of death is an obligation in Italy. The information provided in the medical certificate of cause of death is coded into the International Classification of Diseases (ICD) codes according to the rules specified in the ICD.

3.2 Classification system

Eurostat's CoD statistics build on standards set out by the World Health Organisation (WHO) in the International Classification of Diseases (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  2009
2012  ICD-10  2009
2013  ICD-10  2009
2014  ICD-10  2009
2015  ICD-10  2009
2016  ICD-10  2016
2017  ICD-10  2016
2018  ICD-10  2016
3.3 Coverage - sector

Public Health, Causes of death

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
Usual residency refers to the Italian legal residency registered at Civil Registry and it is the place where a person normally spends the daily period of rest, regardless of temporary absences
3.4.2 Stillbirth definition and characteristics collected
In Italy there is a definition applied in the survey on spontaneous abortion: stillbirths are foetal deaths with a gestional age of more than 180 days.
Nevertheless, the official information source used to report stillbirths, that is Birth Delivery Certificate (Decree of Ministry of Health 349/2001), collects data about stillbirths irrespective of the duration of pregnancy. This information source collects, in addition, all the characteristics used to classify and group stillbirths (gestational age, weight, crown-heel) according to the Commission Regulation (EU) No 328/2011.

The characteristics collected are: gestational age, weight, crown-heel

3.5 Statistical unit

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

3.6 Statistical population

All deaths and stillbirths occurring in Italy, distinguishing residents and non-residents.

3.6.1 Neonates of non-resident mothers

Neonates of non-resident mothers are not considered residents as the residence of newborns is the residence of the mother.

3.6.2 Non-residents
Non residents are included in national statistics if they die in our country.
About  stillbirths, our national statistics include events occured in Italy from non-resident mothers.
3.6.3 Residents dying abroad
Residents dying abroad are not included as our national statistics refer only to deaths occurred in the country. 
3.7 Reference area

The statistical data on causes of death refer to Italy.

Region of occurrence and residence (Nuts2) are indicated.

3.8 Coverage - Time

Italian data are available from 1994 onwards.


Note that due to the fact that 2011 data is the first data collection with a legal basis (and few changes in the requested variables and breakdowns), the data before and after 2011 could not be always comparable (In part due to the different groupings of causes of deaths). Moreover time series for data on stillbirths starts in 2011 and no information on previous data is available.

3.9 Base period

Not applicable.

4. Unit of measure

The unit is number.

5. Reference Period

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

6. Institutional Mandate
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

Common specifications with the World Health Organisation (WHO) were used in the data collection up to 2010; in addition, Eurostat asks for NUTS level 2. From 2011 onwards, Eurostat changed the specifications to take into account the data collected through the Regulation No 328/2011.

7. Confidentiality
7.1 Confidentiality - policy

Regulation (EC) No 223/2009 on European statistics (recital 24 and Article 20(4)) of 11 March 2009 (OJ L 87, p. 164), stipulates the need to establish common principles and guidelines ensuring the confidentiality of data used for the production of European statistics and the access to those confidential data with due account for technical developments and the requirements of users in a democratic society.

Information on Istat confidentiality policy is available on the Istat website: https://www.istat.it/en/methods-and-tools/methods-and-it-tools/analyse

7.2 Confidentiality - data treatment
All cells corresponding to marginal totals by cause with a mortality of less than 3 cases are considered “confidential”. To ensure statistical confidentiality we apply a different treatment depending on the type of output.
Regarding the data warehouse, we designed tables not at risk of disclosure (in some cases we aggregated them at a territorial level).
With regard to the aggregated file by cause for research purpose, each 'confidential' cell is collapsed  by making a grouping for all causes. 
8. Release policy
8.1 Release calendar

Annually, about 24 months after the end of the reference period.

8.2 Release calendar access

Not applicable.

8.3 Release policy - user access

In line with the Community legal framework and the European Statistics Code of Practice Eurostat disseminates European statistics on Eurostat's website (see item 10 - 'Accessibility and clarity') respecting professional independence and in an objective, professional and transparent manner in which all users are treated equitably. The detailed arrangements are governed by the Eurostat protocol on impartial access to Eurostat data for users.

At national level aggregated data are disseminated for free to all users in electronic format (website, Istat datawarehouse), in the same time.

9. Frequency of dissemination

Annual.

10. Accessibility and clarity
10.1 Dissemination format - News release

At Eurostat level, news releases on-line.

At National level it is not applicable.

10.2 Dissemination format - Publications

Causes of death data are disseminated in many different publicatons "multi-source".

Among the most relevant there are:

"Italy in figures"   (http://www.istat.it/en/archive/200600)

"Noi Italia" (http://noi-italia2019.istat.it/index.php?id=3&L=1)

"Italian Statistical Yearbook" (https://www.istat.it/it/files//2019/12/Asi-2019.pdf)

"BES. Benessere Equo Sostenibile" (https://www.istat.it/it/files//2019/12/BES-2019-en.pdf)

10.3 Dissemination format - online database
10.3.1 Data tables - consultations
Not available.
10.4 Dissemination format - microdata access

According to the national laws, techniques have been adopted to protect the confidentiality of the microdata.

Given the sensitiveness of data, the microdata access is limited to the projects included in the National Statistical Program (PSN) approved by law.

10.5 Dissemination format - other

Only for data of the reference years 2011-2013 a release was disseminated: https://www.istat.it/it/archivio/196880

Only for data of the reference year 2014 a release was disseminated:
http://www.istat.it/it/archivio/199355

For data of the reference year 2012 a release was disseminated : http://www.istat.it/it/archivio/140871

A relevant publication is also the following: "La mortalità dei bambini ieri e oggi: l’Italia post-unitaria a confronto con i Paesi in via di sviluppo" http://www.istat.it/it/archivio/40505

10.5.1 Metadata - consultations
Not available.
10.6 Documentation on methodology

Process documents are available here: http://siqual.istat.it/SIQual/lang.do?language=UK

10.6.1 Metadata completeness - rate
All the concepts are provided.
10.7 Quality management - documentation

The official quality documentation on causes of death statistics is available on the Istat official quality documentation system (SIQual) : http://siqual.istat.it/SIQual/visualizza.do?id=5000131

11. Quality management
11.1 Quality assurance

Since the 90s Istat adopted a systematic approach to ensure quality in both statistical information and service to the community: https://www.istat.it/en/organisation-and-activity/institutional-activities/quality-commitment

 

11.2 Quality management - assessment

During 2015 an audit procedure to assess the system of statistics on causes of death has been performed.

The overall assessment was positive, the aims of system are clear and well defined, and they are shown on a wiki page. The audit showed that there are not issues related to the coverage and the list of reference of the survey. Furthermore any attempt to reduce the statistical burden was performed. Regarding the IT, the validated data are systematically stored on an Oracle DB, and they are adequately protected following the standards of the Institute. The data released on the web are accompanied by links to SIQual, the Istat official quality documentation system.

12. Relevance
12.1 Relevance - User Needs

Main users are public national and local government, public research institutes and private researchers.

Data are mainly used to support the decisions about public policies on health and to study the mortality (trend, risk factors, etc)

Sometimes users ask for more detailed data (e.g. nuts3 level, microdata), but generally these requests cannot be met for confidentiality reasons.

12.2 Relevance - User Satisfaction

The views and opinions of the users are not regularly collected but during the meeting for the arrangement of the National Statistical Program (PSN) the Committee of Statistical Information Users (CUIS) is consulted to highlight the possible weaknesses of data. In general terms the users resulted satisfied.

12.3 Completeness

All data requested are sent and disseminated on Eurostat's website.

12.3.1 Data completeness - rate

1. For mandatory variables:

 100%

2. For voluntary variables:

 76% (19/25)

3. For additional variables:

  • External CoD

 It is provided for general and neonatal deaths, not for stillbirths

  • Place of occurrence for external CoD

  It is not provided

  • Activity for external CoD

  It is not provided

13. Accuracy
13.1 Accuracy - overall

As the data collection is total population based, the sampling error is not applicable. Many efforts are spent to detect and to obtain the missing models by the non-respondent municipalities, reaching a coverage level of about 100%. An editing and imputation procedure is applied to data to check and correct the measurement errors and item non-responses. Significant investments (tools to support encoding, training coders, etc.) are continously made to improve the quality of causes of death coding.

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
see 13.1
13.3.1 Coverage error
The coverage error is about 0,3%
13.3.1.1 Over-coverage - rate
not applicable
13.3.1.2 Common units - proportion

Not applicable. Data collection is from administrative sources.

13.3.2 Measurement error
Not applicable
13.3.3 Non response error
Not applicable
13.3.3.1 Unit non-response - rate
Not applicable
13.3.3.2 Item non-response - rate
Not applicable
13.3.4 Processing error
Not applicable
13.3.5 Model assumption error

Not applicable.

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

not applicable

14.1.2 Time lag - final result

24 months

14.2 Punctuality

From data collection with reference year 2011 onwards, Istat mets the deadline of the Implementing Regulation (EC) No. 328/2011, Article 4.

14.2.1 Punctuality - delivery and publication
The scheduled date for delivery/release of the data is respected
15. Coherence and comparability
15.1 Comparability - geographical

The data are geographically comparable because all data processing is managed centrally by Istat. Moreover geographical coverage is complete and missing events are of negligible order.

15.1.1 Asymmetry for mirror flow statistics - coefficient

Not applicable.

15.2 Comparability - over time

Due to the fact that in 2003 the tenth revision of the ICD has been adopted the data between 1994-2002 and starting from 2003 could not be always comparable. Moreover time series for data on stillbirths starts in 2011 and no information on previous data is available.

15.2.1 Length of comparable time series
General mortality: since 2003
Stillbirths: since 2011
15.3 Coherence - cross domain
Two different data sources for collecting mortality data in Italy are carried out by the National Institute of Statistics (Istat):
 
1)       “Deleted to death from population registers” (Demographic Statistics or DS)
2)       “Causes of death” (CoD). 
 
The DS survey refers to cancellation due to death from the Population register of all residents in Italy, including those died abroad. CoD statistics instead refer to all deaths occurred in Italy (for both residents and non residents).
 
The discrepancies found between DS and CoD data are primarily ascribed to the different data source: acquisition of an administrative archive cancellation for the DS data versus a data collection of death certificates completed by physicians for the CoD data and to the different population that these two different data sources belongs to, actually the residents dying outside the country are collected only by DS.
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

Italian data on causes of death are internally consistent.

16. Cost and Burden

Main costs concern the recording and coding phases. Nevertheless increasing use of IT tools allowed to reduce costs. 

17. Data revision
17.1 Data revision - policy

Not applicable.

17.2 Data revision - practice

There is no systematic revision of previous year data. Data are occasionally revised, e.g. if the "NUTS" changes.

17.2.1 Data revision - average size

Not applicable.

18. Statistical processing
18.1 Source data

For each death a death certificate is filled in by a physician. He must indicate "all diseases, morbid or traumatic conditions that led or contributed to death, and the circumstances of the accident or violence that provoked these traumatisms" in the health section of certificate, hereby also reporting other relevant information linked to the death. Once the physician has filled in the health section, the form is sent to the pertinent municipality. The registrar must complete the certificate by indicating the socio-demographic data of the deceased. In particular, other than the dates of birth and death this information concerns the place of birth and residence, marital status, educational level, profession, branch of economic activity, citizenship and individual code of the deceased. If death has occurred during the first year of life, the form is slightly different and, as regards the demographic section, the requested information mainly refers to the condition of the parents. Having been filled out in duplicate, the form follows two different paths: one copy is sent to the ASL (where the death occurred), whereas the other copy, before being sent to Istat, is sent to the Prefectures and Regional Offices.

18.2 Frequency of data collection

Annual.

18.3 Data collection
The Italian statistics on causes of death are produced by a centralized system of coding and data processing.
Causes of death are coded by an automated coding system (ACS), that requires alphanumerical registration of the health section of the death certificate. Only causes rejected by this system are manually coded. Since reference year 2003 also data on multiple causes are coded.
18.3.1 Certification

Not applicable because we do not have any statistics on certification training or post-mortem exam courses attended by certifiers. We also do not handle any post-mortem queries.

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              
2012              
2013              
2014              
2015              
2016              
2017              
2018              
18.3.2 Automated Coding
1. Automated Coding
Data year a) Did you use any form of automated coding? [Yes / No] b) If yes, please indicate the system used (IRIS, MICAR, ACME, STYX, MIKADO, others)
2011 Yes  ACTR_MICAR_ACME 
2012 Yes  ACTR_MICAR_ACME 
2013 Yes ACTR_MICAR_ACME
2014  Yes ACTR_MICAR_ACME
2015 Yes ACTR_MICAR_ACME
2016 Yes IRIS
2017 Yes IRIS
2018 Yes IRIS
18.3.3 Underlying cause of death
2. Underlying cause of death selection and modification
Data year a) only manual selection of underlying cause b) manual with ACME decision tables (if yes, which version of ACME) c) ACS utilising ACME decision tables (if yes, which version of ACME) d) own system (ACS without ACME) e) Comments
2011   YES (2009) for external causes and infant deaths   2009.10  No   
2012   YES (2009) for external causes and infant deaths   2009.10  No   
2013   YES (2009) for external causes and infant deaths 2009.10 No  
2014   YES (2009) for external causes and infant deaths 2009.10 No  
2015   YES (2009) for external causes and infant deaths 2009.10 No  
2016   YES (2009) for external causes and infant deaths 2009.10 No  
2017   YES (2009) for external causes and infant deaths 2009.10 No  
2018   YES (2009) for external causes and infant deaths 2009.10 No  
18.3.4 Availability of multiple cause
3. Information available in the national COD database
Data year Which information do you store in your national COD database - the underlying cause (UC) only or multiple causes (MC)?
2011 UC + MC 
2012 UC + MC 
2013 UC + MC
2014 UC + MC
2015 UC + MC
2016 UC + MC
2017 UC + MC
2018 UC + MC
18.3.5 Stillbirths and Neonatal certificates

a) Stillbirths

the source of data is Birth Delivery Certificate for which the Ministry of Health is responsible (Decree of Ministry of Health 349/2001). This information source collects data about births, stillbirths and congenital anomalies at birth, irrespective of the duration of pregnancy.

 

b) Neonates

Istat has a different death certificate for neonatal and infant deaths (all deaths under 1 year of age)

https://www.istat.it/ws/fascicoloSidi/924/Scheda%20di%20morte%20-%20Modello%20ISTAT%20D.4%20BIS.pdf

18.4 Data validation
An editing and imputation procedure is applied to check and correct the measurement errors and item non-responses. The procedure is based on both deterministic (health and socio-demographic data) and probabilistic approach (socio-demographic data), to input incorrect and missing data.
18.4.1 Coding

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

The coding is performed at central level, using the automated coding system Iris. Percentage of rejects of Iris is about 20%. Rejected certificates are manually revised by trained coders.

 

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):

Inconsistencies between cause of death and other informations on death certificate (age, sex, manner of death) are detected with on-line alerts during coding, so the coders can check the original death certificate and correct. At the end of the year a consistency check is also run for the detection of inconsistencies.

 

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

Errors detected are corrected manually by expert coders.

 

Coding performed by a certifier:

Certifiers do not perform coding in Italy

 

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

Not applicable

 

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

Not applicable

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 1.71 0.32  0.87  1.20 
2012 1.83  0.33  0.93  1.15 
2013 1.84  0.32  0.91  1.21 
2014 1.92  0.30  0.97  1.25 
2015 2.08  0.33  1.07  1.25 
2016 2.07  0.40  1.01  1.40 
2017 2.19  0.42  1.07  1.44 
2018 2.28 0.43  1.13  1.40 
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 0.2 0.4 0
2012  0 0 0.2 0.4
2013  0 0 0.2  0.4
2014  0 0 0.2  0.4
2015  0 0 0.2  0.4 
2016  0 0 0.2  0.4 
2017  0 0.2  0.4 
2018  0 0.2  0.4 
18.4.4 Validation of the coverage

We use external sources such as the data of demographic events of civil registry.
Regarding stillbirths, as external source we use Hospital Discharges Information for the validation of the coverage of deliveries.

18.5 Data compilation

The imputation procedures are based on both deterministic (health and socio-demographic data) and probabilistic approach (socio-demographic data), to input incorrect and missing data.
Much of the probabilistic procedures are based on the Nearest-neighbour Imputation Methodology (NIM, developed by Statistics Canada).

18.5.1 Imputation - rate

Age: 8.3%
Gender: 0.67%
Residence: 1%
Civil status: 2.2%
Educational level: 21.5%

18.6 Adjustment

Not applicable

18.6.1 Seasonal adjustment

Not applicable.

19. Comment

None.