ISTAT - Istituto Nazionale di Statistica
Euro-SDMX Metadata Structure Definition (ESMS_MSD 3.0 ESTAT)
Population change - Demographic balance and crude rates at national level
2017 - A0
1. Contact
1.1 Contact organisation

Istat - Italian National Statistical Institute

1.2 Contact organisation unit

Population register, demographic statistics and life conditions

1.3 Contact name
1.4 Contact person function
1.5 Contact mail address

Viale Liegi 13, 00198 Rome

1.6 Contact email address
1.7 Contact phone number
1.8 Contact fax number
2. Metadata update
2.1 Metadata last certified
14/06/2018
2.2 Metadata last posted
14/06/2018
2.3 Metadata last update
14/06/2018
3. Statistical presentation
3.1 Data description

Total yearly survey on resident population.

Yearly survey on population change and stock at municipality level, providing information by sex on: live births, deaths, registration and deregistration for migration and the number of resident population at the end of the year.

3.2 Classification system

Not applicable.

3.3 Coverage - sector

Not applicable.

3.4 Statistical concepts and definitions
3.4.1 Please indicate the definition of:
Population The mother's residence The data deaths
1.Usual Residence Population 2.Legal Residence Population 3.Registered Residence Population 4.Other 1.Usual Residence Population 2.Legal Residence Population 3.Registered Residence Population 4.Other 1.Usual Residence Population 2.Legal Residence Population 3.Registered Residence Population 4.Other
All persons having their usual residence in a Member State at the reference time. All persons enrolled in a population register with a legal status to be resident, plus all persons not enrolled in a population register but having a a permit of stay for at least 12 months. All persons enrolled in a population register, irrispectively the fact they have mantained  or they have lost a legal status to be resident. Population on december 31st of each year, updating the last Census resident population with demographic inflows and outflows occurred between the last Census date and the end of the year. All persons having their usual residence in a Member State at the reference time. All persons enrolled in a population register with a legal status to be resident, plus all persons not enrolled in a population register but having a a permit of stay for at least 12 months. All persons enrolled in a population register, irrispectively the fact they have mantained  or they have lost a legal status to be resident. Population on december 31st of each year, updating the last Census resident population with demographic inflows and outflows occurred between the last Census date and the end of the year. All persons having their usual residence in a Member State at the reference time. All persons enrolled in a population register with a legal status to be resident, plus all persons not enrolled in a population register but having a a permit of stay for at least 12 months.    All persons enrolled in a population register, irrispectively the fact they have mantained  or they have lost a legal status to be resident. Population on december 31st of each year, updating the last Census resident population with demographic inflows and outflows occurred between the last Census date and the end of the year.

 

3.4.2 Please describe the national definition of
Population Live births Deaths Immigrants Emigrants
See point n. 4 Other. Live birth means the complete expulsion or extraction from its mother of a result of conception, irrespective of the duration of pregnancy, which after such separation, breathes or shows any other evidence of life, such as beating of the heart, pulsation of the umbilical cord or definite movement of voluntary muscles, whether or not the umbilical cord has been cut or the placenta is attached: each result of such a birth is considered live-born, regardless of gestational age. Death means the permanent disappearance of all evidence of life at any time after live birth has taken place (postnatal cessation of vital functions without capability of resuscitation). A person establishing his or her usual residence in Italy for a period that is expected to be of at least 12 months, having previously been usually resident in another Member State or a third country. A person establishing his or her usual residence abroad for a period that is expected to be of at least 12 months, having previously been usually resident in Italy. 

 

3.4.3 Please provide details of the deviations of the national definition used from the usual residence definition.
Population Live births Deaths Immigrants Emigrants
Following the CES recomendations for the 2010 Censuses:

1) Militar, Naval and diplomatic personnel situated abroad not included;

2) Illegals, irregulars and migrants without documents not included;

3) Asilum seekers whose request of application in the population registers is still under evaluation.

None. None. See under 'Population'.  See under 'Population'. 
3.5 Statistical unit

Person.

3.6 Statistical population
In case of survey as data source, please describe the target statistical population (one or more) which the data set refers to
Population Live births Deaths Immigrants Emigrants
         
3.7 Reference area

Data are available at national level of geographical detail.

3.8 Coverage - Time

Since 1952 January 1st.

3.9 Base period

Not applicable.

4. Unit of measure

Person.

5. Reference Period

The reference date for population data is the end of the reference period (midnight of 31December).
The reference period for vital events data is the calendar year in which the events were occurred.  
The reference period for migration flow data is the calendar year in which the migration was occurred.

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

Optional

6.2 Institutional Mandate - data sharing

Optional

7. Confidentiality
7.1 Confidentiality - policy

Optional

7.2 Confidentiality - data treatment

Optional

8. Release policy
8.1 Release calendar

Optional

8.2 Release calendar access

Optional

8.3 Release policy - user access

Optional

9. Frequency of dissemination

Annual.

10. Accessibility and clarity
10.1 Dissemination format - News release
10.2 Dissemination format - Publications

Flagship: Annuario statistico italiano 2013.

10.3 Dissemination format - online database
10.4 Dissemination format - microdata access

Not applicable.

10.5 Dissemination format - other

Optional

10.6 Documentation on methodology
10.7 Quality management - documentation

Optional

11. Quality management
11.1 Quality assurance

Population change and stock data are checked before being uploaded into the database and disseminated to the public. The validation rules are established to ensure the data consistency and the comparability along times of indicators.

11.2 Quality management - assessment

Internal controls on specific items of municipal electronic forms.

12. Relevance
12.1 Relevance - User Needs

Statistics on population change and the structure of population are increasingly used to support policy making and to provide the opportunity to monitor demographic behaviour within political, economic, social and cultural contexts.

12.2 Relevance - User Satisfaction

Optional

12.3 Completeness

Optional

13. Accuracy
13.1 Accuracy - overall
Please report on the reasons for any unreliability of the data on:
Population Live births Deaths Immigrants Emigrants Net migration
 none  none  none  none  none  none
13.2 Sampling error
In case of survey as data source, please provide information on the part of the difference between a population value and an estimate thereof, derived from a random sample, which is due to the fact that only a subset of the population is enumerated.
Population Live births Deaths Immigrants Emigrants
 Not applicable   Not applicable   Not applicable   Not applicable   Not applicable
13.3 Non-sampling error
In case of survey as data source, please provide information on the error in survey estimates which cannot be attributed to sampling fluctuations.
Population Live births Deaths Immigrants Emigrants
  Not applicable   Not applicable   Not applicable   Not applicable   Not applicable
14. Timeliness and punctuality
14.1 Timeliness

Optional

14.2 Punctuality

Optional

15. Coherence and comparability
15.1 Comparability - geographical

The question is not clear. Anyway National borders of Italy have been not changing since 1945.

15.2 Comparability - over time
Please provide information on the length of comparable time series (indicate the first reference year for which data are availble), reference periods at which series occur, the reasons for the breaks and treatments of them.
Population Live births Deaths Immigrants Emigrants
 1952 january 1st  1926  1926  1926  1926
15.3 Coherence - cross domain

Optional

15.4 Coherence - internal

In this framework Italy is well inside the Usual residence definition given in article 2/d, in particular where it is stated that where the circumstances described in point (i) or (ii) cannot be established, ‘usual residence’ can be taken to mean the place of legal or registered residence.

16. Cost and Burden

Optional

17. Data revision
17.1 Data revision - policy

Optional

17.2 Data revision - practice

Optional

18. Statistical processing
18.1 Source data
Please report on the data sources used for the first reference year and inform of any changes thereto,  to produce:
Population Live births Deaths Immigrants Emigrants
1) Population register

2) Census

Population register Population register Population register Population register
18.2 Frequency of data collection

Annual.

18.3 Data collection
18.4 Data validation

Data validation:
1. Coherence control with previous data of the same survey.
2. Coherence control with data from other surveys or sources.

18.5 Data compilation

Questionnaires are filled by municipalities using personalised electronic forms.

18.6 Adjustment

In 2017 the statistical adjustments amount to a net value of -102,829 units.

One first reason is due to registration and deregistration different from births, deaths, immigrations and emigrations.

Secondly, the net internal migration at national level may be different than zero due to the collection procedures of provisional data that capture the aggregate in-migration and out-migration separately from each municipality.

19. Comment