Accidents at work (ESAW, 2008 onwards) (hsw_acc_work)

National Reference Metadata in Single Integrated Metadata Structure (SIMS)

Compiling agency: National Social Security Institute (NSSI)


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

National Social Security Institute (NSSI)
1.2. Contact organisation unit

Expertise of the working capacity and accident at work
1.5. Contact mail address

National Social Security Institute
62-64, Al. Stambolijski blv.
1303 Sofia, Bulgaria


2. Metadata update Top
2.1. Metadata last certified 17/07/2023
2.2. Metadata last posted 17/07/2023
2.3. Metadata last update 17/07/2023


3. Statistical presentation Top
3.1. Data description

Harmonised Bulgarian data (BgSAW) on accidents at work are collected in the framework of the administrative data collection 'European Statistics on Accidents at Work (ESAW)', on the basis of a methodology - 2013 edition.
“Accident at work ” (AW) covers all cases of sudden injury, which has occurred during the work process or in connection with the labor process or while performing work, as well as during each work, which is performed for the benefit of the enterprise and this sudden injury has caused certain work incapacity or death.
"Commuting accident" (CA) covers all cases of sudden injury, which has occurred on the usual route when going to the work place or coming back from the work place.

The data include only fatal and non-fatal accidents which result in more than 1 calendar day absence from work.

The variables collected on accidents at work, include all ESAW variables from phase I, II and III.

The accidents at work are declare at the national social security system in the territorial offices of the NSSI. The main national BgSAW sources are a declaration of an accident at work and a medical document proving the work incapacity or certificate for death.

National data from 2003 to 2009 are disseminated as a yearbook "ACCIDENTS AT WORK numbers, variables, indicators"
The national data from 2010 onwards are disseminated on the NSSI website: https://www.noi.bg/publikacii/statistika/trudovi-zlopoluki/statisticheski-godishnik-trudovi-zlopoluki/

The data is presented in the form of numbers, percentages and indicators of non-fatal and fatal accidents at work.
The indicators are:
- Percentages of accidents (in relation to different totals and breakdowns);
- Incidence rates of non-fatal accidents: number of non-fatal accidents per 1,000 insured for accidents at work persons;
- Incidence rates of fatal accidents: number of fatal accidents per 10,000 insured for accidents at work persons;
- Weight coefficient: number of lost days per 1 insured for accidents at work person;
- Frequency index: number of accidents at work per 1,000,000 hours worked by the insured for accidents at work persons during the reference year;
- Weight index: number of lost days as a result of accidents at work per 1,000,000 hours worked by the insured for accidents at work persons during the reference year.

The specific BgSAW reference population is the number of the insured for accidents at work persons.
3.2. Classification system

The following classifications are used in the Bulgarian Statistics on Accidents at Work (BgSAW) :

- Classification of Economic Activities (CEA-2008, for international use NACE.BG 2008), comparable to the NACE Rev. 2 - since 2008;
- National Classification of Occupations and Duties-2005 (NCOD-2005), comparable to the International Standard Classification of Occupations - ISCO '88 - until 2010;
- National Classification of Occupations and Duties-2011 (NCOD-2011), comparable to the International Standard Classification of Occupations - ISCO '08 - since 2011;
- NUTS: Nomenclature of territorial units for statistics. Latest NUTS version in force, depending on the reference year of the data collection;
- Unified Classification of Administrative-Territorial and Territorial Units (UCATTU);
- International classification of professional status - ICSE-93.
3.3. Coverage - sector

All economic sectors according to NACE Rev. 2 are covered from the reference year 2008 onwards.
The covered are the enterprises from all economic sectors irrespective of their type of ownership and source of financing.
3.3.1. Sector Coverage ESAW

COVERAGE OF ECONOMIC SECTORS (NACE), (Annual update expected)

NACE

NACE Rev.2

 Coverage

A

Agriculture, forestry and fishing

 Y

B

Mining and quarrying

 Y

 

off shores

 Y

 

others

 Y

C

Manufacturing

 Y

D

Electricity, gas, steam and air conditioning supply

 Y

E

Water supply, sewerage, steam and air conditioning supply

 Y

F

Construction

 Y

G

Wholesale and retail trade; repair of motor vehicles, motorcycles

Y

H

Transportation and storage

 Y

 

maritime transport (NACE 50)

 Y

 

air transport (NACE 51)

 Y

 

transport via Railways (NACE 49)

 Y

 

post & telecomunications (NACE 53)

 Y

I

Accomodation and food service activities

 Y

J

Information and communication

 Y

K

Financial and insurance activities

 Y

L

Real state activities

 Y

M

Professional, scientific and technical activities

 Y

N

Administrative and support service activities

 Y 

O

Public administration and defence;compulsory social security

 Y

 

of which defence, police and firebrigades (NACE 84.22, 84.24 and 84.25)

 N

P

Education

 Y

Q

Human health and social work activities

 Y

R

Arts, entertainment and recreation

  Y

S

Other service activities

 Y

T

Activities of households as employers; undiferentiated goods- and services-producing activities of  households for own use

 Y

U

Activites of extra territorial organisations and bodies

 Y

 

Additional comments on coverage of economic sectors

 

 

Codes:

y Sector fully covered
n Sector not covered at all
p Secor partially covered
n.a. Not applicable, i.e. sector does not exist in country
3.4. Statistical concepts and definitions

BgSAW are based on case-by-case data for accidents at work resulting in more than 1 day absence from work, permanent incapacity or death of the victim.

An accident at work is sudden injury, which has occurred during the work process or in connection with the labor process or while performing work, as well as during each work, which is performed for the benefit of the enterprise and this sudden injury has caused certain work incapacity or death.

Commuting accident is sudden injury, which has occurred on the usual route when going to the work place or coming back from the work place.

- It includes: accidents at work and commuting accidents
- It excludes: deliberate self-inflicted injuries; persons who are not insured for accident at work within the obligatory governmental social security system.
3.4.1. Definition of ESAW variables

COVERAGE OF ESAW VARIABLES (Annual update expected)

Economic activity of the employer

 Y

Occupation of the victim

 Y

Age of victim

Y

Sex of victim

 Y

Type of injury

Y

Part of body injured

Y

Geographical location

Y

Date of the accident

Y

Time of the accident

Y

Size of enterprise

Y

Nationality

Y

Employment status

Y

Days lost

Y num

Workstation

Y

Working environment

 Y

Working process

 Y

Specific physical activity

 Y

Material agent of Specific physical activity

 Y

Deviation

Y

Material agent of Deviation

 Y

Contact – mode of injury

Y

Material agent of Contact - Mode of injury

 Y

Road traffic accidents (RTA)

  Y

Weight

 N

Type of weight (under-reporting - U; sampling - S; special sampling - Sp)

 -

 

Additional comments on coverage of ESAW variables

 

 

Codes:

Coverage
y Variable fully covered
n Variable not covered at all, i.e. variable is so far not collected in country
p Variable partially covered

Days lost
y num Days lost are covered and in data file listed by numbers (004 - 182)
y cat Days lost are covered and in data file listed by categories (A01 - A06)
p num, p cat Days lost are partly covered and listed by numbers (categories)

Type of weight
U weight to correct under-reporting
S weight to account for sampling
Sp weight to correct special sampling
3.5. Statistical unit

Data are collected for each accident. If a person is a victim of more than one accident during the reference year, several cases are reported (one for each accident). If there are several victims in the same event of an accident, also several cases are reported (one for each victim).
3.6. Statistical population

All incidents at work that meet the definition of Accident at Work are covered.
In terms of the coverage of the employment status, all insured for accidents at work persons including employees are included.
The other employment types (self-employed, family members, students) are completely excluded. They are not insured for accidents at work persons.

Subject of national confidentiality rules are:
- NACE 4-digit sections - 84.22; 84.24; 84.25.
- ISCO – 08 professions - 0; 3351; 3355; 5411; 5412; 5413.
3.6.1. Statistical Population ESAW

COVERAGE OF PROFESSIONAL STATUS (Annual update expected)

Professional status

  Coverage

1. Self employed

N

   1.1 Self employed with employees

 N

   1.2 Self employed without employees

 N

2. Family worker

 N

3. Employee

 Y

   3.1 Part time workers

 Y

   3.2 Casual workers

 Y

   3.3 Trainees/Apprentices

 Y

4. Students

 N

5. Others

Y

 

Additional comments on coverage of professionnal status

 

 

Codes:

y Professional status fully covered
n Professional status not covered at all
p Professional status partially covered
n.a. Not applicable, i.e. professional status does not exist in country

 

COVERAGE OF ACCIDENTS OUTSIDE PREMISES (Annual update expected)

Accidents in the course of work

 Coverage

1. Commuting accidents

 N

2. Accidents in a public place or in a mean of transport during a journey in the course of work

 Y

2.1 Road traffic accidents in the course of work (public highways, car parks, internal ways inside the premises of the enterprise)

 Y

2.2 Number of fatal road traffic accidents during a journey in the course of work for persons employed outside the NACE Rev. 2 sector H Transportation (PLEASE INSERT THE MANDATORY NUMBER)

 11

2.3 Other accidents (slips, falls, aggressions, etc.) in a public place (pavement, staircases, etc.) or in the arrival and starting points (station, port, airport, etc.) of any mean of transport, during a journey in the course of work

 Y

2.4 Accidents on board of any means of transport (underground railway, tram, train, boat, plane, etc.) used during a journey in the course of work

 Y

2.5 Number of fatal accidents on board of any other means of transport during a journey in the course of work for persons employed outside the NACE Rev. 2 sector H Transportation (PLEASE INSERT THE MANDATORY NUMBER)

 3

3. Accidents occurred within the premises of another company than that which employs the victim, or in a private individual, in the course of work

Y

4. Accidents having only a medical origin, in the course of work

N

 

Additional comments on coverage of accidents outside premises

 

 

Codes:

y Accidents fully covered
n Accidents not covered at all
p Accidents partially covered
F Data of fatal road traffic accidents and fatal accidents on board of any means of transport provided in the main CSV data file
A Data of fatal and non-fatal road traffic accidents as well as fatal and non-fatal accidents on board of any means of transport provided in the main CSV data file
3.7. Reference area

Data are available at:

National data from 2003 to 2009 are disseminated as a yearbook "ACCIDENTS AT WORK numbers, variables, indicators";

National data since 2010 are disseminated on the NSSI website: https://www.noi.bg/publikacii/statistika/trudovi-zlopoluki/statisticheski-godishnik-trudovi-zlopoluki/
3.8. Coverage - Time

Data are available as a yearbook in paper format for the reference years from 2003 to 2009.

Data are available as a yearbook in electronic format on the NSSI’s website from the reference year 2010 onwards.
3.9. Base period

Not applicable.


4. Unit of measure Top

The following measurement units are used in BgSAW data:

   - Number of accidents;
   - Percentages of accidents (in relation to different totals and breakdowns);
   - Incidence rates of non-fatal accidents: number of non-fatal accidents per 1,000 insured for accidents at work persons;
   - Incidence rates of fatal accidents: number of fatal accidents per 10,000 insured for accidents at work persons;
   - Weight coefficient: number of lost days per 1 insured for accidents at work person;
   - Frequency index:  number of accidents at work per 1,000,000 hours worked by the insured for accidents at work persons during the reference year;
   - Weight index: number of lost days as a result of accidents at work per 1,000,000 hours worked by the insured for accidents at work persons during the reference year. 


5. Reference Period Top

2021


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

The implementing Regulation under which Member States report ESAW data to Eurostat is Commission Regulation (EU) No 349/2011 of 11 April 2011 implementing Regulation (EC) No 1338/2008 of the European Parliament and of the Council on Community statistics on public health and health and safety at work, as regards statistics on accidents at work (text with EEA relevance; see http://eur-lex.europa.eu/legal-content/EN/ALL/?uri=CELEX:32011R0349).

The afore mentioned Regulation 349/2011 implements the framework Regulation EC N° 1338/2008 of the European Parliament and of the Council on Community statistics on public health and health and safety at work (see http://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex:32008R1338).

National legal acts:
     - Law on Statistics - Legal Basis | National statistical institute (nsi.bg)
     - Social Insurance Code (In force since January 1st, 2000) - http://noi.bg/en/legislationen/sic
     - Ordinance on the Ascertaining, Investigation, Registration and Accounting of accidents at work (In force since January 1st, 2000)
6.2. Institutional Mandate - data sharing

Not applicable.


7. Confidentiality Top
7.1. Confidentiality - policy

Law on Statistics - Chapter Six

Secrecy

Regulation (EC) No 223/2009 of the European Parliament and of the Council of 11 March 2009 on European statistics (provision 24 and Article 20 (4)) (OJ L 87, p. 164), stipulates the necessity 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 the technical development and the requirements of users in a democratic society.
7.2. Confidentiality - data treatment

In accordance with Article 25 of the Law on Statistics individual data are not published. Dissemination of individual data is possible only in accordance with Article 26 of the Law on Statistics.

Individual anonymous data provided for the purposes of scientific research do not consist any administrative data as personal information and address and do not allow direct identification.


8. Release policy Top
8.1. Release calendar

BgSAW data is usually released between June - September each year (in year N+2, where N is the reference year).

NSSI - Release calendar by months: https://www.noi.bg/wp-content/uploads/Calendar_stats_NOI_2023_months.pdf

NSSI - Release calendar by topics: https://www.noi.bg/wp-content/uploads/Calendar_stats_NOI_2023_topics.pdf
8.2. Release calendar access

Not available.
8.3. Release policy - user access

The data are published on the NSSI website, section “Statistics” in accordance with the Ordinance on the Ascertaining, Investigation, Registration and Reporting of Accidents at Work and the European Statistics Code of Practice, in respect to the professions’ independence and aimed at objectivity, transparency and equal treatment of all consumers.


9. Frequency of dissemination Top

Annual


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

Ministry of Labour and Social Policy

https://www.mlsp.government.bg/uploads/1/npbzr1820en.pdf

https://www.mlsp.government.bg/uploads/37/politiki/trud/npbzr/npbzr2224web.pdf

 

There are many news posts. Links to articles from various media - newspapers, radio, electronic media, Bulgarian News Agency:

https://www.investor.bg/a/332-ikonomika-i-politika/350718-trudovite-zlopoluki-prez-2021-g-sa-se-uvelichili

https://www.investor.bg/a/332-ikonomika-i-politika/303277-balgariya-e-na-vtoro-myasto-v-es-po-broy-na-fatalnite-trudovi-zlopoluki

https://www.focus-news.net/novini/Bylgaria/S-39-sa-se-uvelichili-trudovite-zlopoluki-prez-purvoto-trimesechie-na-2023-g-spryamo-minalata-godina-1647728

https://www.bta.bg/bg/news/bulgaria/oficial-messages/444282-noi-trudovite-zlopoluki-prez-parvoto-trimesechie-na-2023-g-spryamo-sashtiya-pe

https://www.24chasa.bg/bulgaria/article/14282284

https://trud.bg/%D0%BD%D0%B0%D1%80%D0%B0%D0%BD%D1%8F%D0%B2%D0%B0%D0%BC%D0%B5-%D1%81%D0%B5-%D0%BF%D0%BE-%D1%87%D0%B5%D1%81%D1%82%D0%BE-%D0%BF%D1%80%D0%B8-%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D0%B0/

https://bnr.bg/shumen/post/101816346/shumen-deseti-po-trudovi-zlopoluki

https://www.mediapool.bg/na-tri-dni-edin-rabotnik-umira-pri-trudova-zlopoluka-u-nas-news347243.html
10.2. Dissemination format - Publications

Year book - Social Security in Bulgaria in 2006, 2007, 2008, 2009, 2010 - https://www.noi.bg/publikacii/izdaniq-na-noi/godishnik-na-noi/

Year book - State Social Security since 2011 to the reference year (see 5) - https://www.noi.bg/publikacii/analizi/doo/

Bulletin of NSSI:

Preliminary information

Accidents at work-2022 - https://www.noi.bg/wp-content/uploads/Bul_1_2023.pdf

Accidents at work-2021 - https://www.noi.bg/wp-content/uploads/Bul_1_2022.pdf

Accidents at work-2020 - https://www.noi.bg/wp-content/uploads/Bul_1_2021.pdf

Statistical information

Accidents at work-2016 - https://www.noi.bg/wp-content/uploads/Bul_3_2018.pdf

Accidents at work-2014 - https://www.noi.bg/wp-content/uploads/BUL_3_2016.pdf
10.3. Dissemination format - online database

See on the NSSI website: https://www.noi.bg/publikacii/statistika/trudovi-zlopoluki/

Statistical information AW in short 2001, ..., 2021:
https://www.noi.bg/publikacii/statistika/trudovi-zlopoluki/informatsiya-za-trudovite-zlopoluki/

Yearbook "Accidents at work - numbers, variables, indicators" 2010, …, 2021:

https://www.noi.bg/publikacii/statistika/trudovi-zlopoluki/statisticheski-godishnik-trudovi-zlopoluki/

NSSI website English version:

Work accidents - 2019 … 2021 - https://www.noi.bg/en/statistics/work-accidents/
10.3.1. Data tables - consultations

Not available.
10.4. Dissemination format - microdata access

BgSAW data is not available as microdata.
10.5. Dissemination format - other

Not applicable.
10.5.1. Metadata - consultations

Not available.
10.6. Documentation on methodology

Statistical System "Accidents at work"
http://www.nsi.bg/sites/default/files/files/pages/Classifics/SSTZ_2014.pdf
10.6.1. Metadata completeness - rate

We provide metadata every year.
10.7. Quality management - documentation

This file constitute the documentation available on data quality.


11. Quality management Top
11.1. Quality assurance

According to Article 2, point 3 from the Law on Statistics the statistical information is produced in compliance with the following criteria for quality: adequacy, accuracy, timeliness, punctuality, accessibility and clarity, comparability and logical consistency.

Data is encoded in NSSI by experts in accidents at work.

With these experts are conduct annual trainings on the rules for coding according to BgSAW and ESAW methodology.
11.2. Quality management - assessment

In general, NSSI aims to continuously improve the quality of BgSAW data.
BgSAW is an administrative data collection which provides information on accidents at work as they are reported by employers to NSSI.


12. Relevance Top
12.1. Relevance - User Needs

All users are treated equitably.

The users groups can be classified in the following main groups:
National authorities - ministries, agencies, councils, other government bodies and public institutions;
International organizations - Eurostat, ILO etc.
Social Partners - unions, employers' organizations;
Private organizations, enterprises, media;
Researchers and students.
12.2. Relevance - User Satisfaction

All user requests received in NSSI are satisfied in terms of volume, quality and period of performance.

However, there is currently no dedicated user satisfaction survey on statistics.
12.3. Completeness

The data refer to the whole country and all economic activities.

All ESAW variables from phase I, II, III are included (obligatory and voluntary)
12.3.1. Data completeness - rate

There are coverage of all ESAW variables (phase I, II and III) in terms of all breakdowns.
12.3.1.1. Data completeness rate of ESAW variables per sector

REPORTING LEVELS OF ECONOMIC SECTORS (NACE), (Annual update expected)

 

Global reporting level

 100%

Reporting levels by sector

A. Agriculture, forestry and fishing

100%

B. Mining and quarrying

100%

off shores

100%

others

100%

C. Manufacturing

100% 

D. Electricity, gas, steam and air conditioning supply

100%

E. Water supply, sewerage, steam and air conditioning supply

100%

F. Construction

 100%

G. Wholesale and retail trade; repair of motor vehicles, motorcycles

100%

H. Transportation and storage

100%

maritime transport (NACE 50)

100%

air transport (NACE 51)

100%

transport via Railways (NACE 49)

100%

post & telecomunications (NACE 53)

100%

I. Accomodation and food service activities

100%

J. Information and communication

100%

K. Financial and insurance activities

100%

L. Real state activities

100%

M. Professional, scientific and technical activities

100%

N. Administrative and support service activities

100%

O. Public administration and defence;compulsory social security

100%

of which defence, police and firebrigades (NACE 84.22, 84.24 and 84.25)

N

P. Education

100%

Q. Human health and social work activities

100%

R. Arts, entertainment and recreation

100% 

S. Other service activities

100%

T. Activities of households as employers; undiferentiated goods- and services-producing activities of  households for own use

100%

U. Activites of extra territorial organisations and bodies

100%

 

Additional comments on global reporting level

 No studies have been carried out in Bulgaria up to 2007 in order to enable a reporting levels evaluate.

 

Codes:

N sector not covered by data collection
UNK sector covered but unknown reporting level
(value %) reporting level
(e) rough estimate (instead of "medium" or "high")

 

Explanation: Please fill in every cell with information, either "N" for sector not covered by the data collection, "UNK" for sectors covered but unknown reporting level, or a percentage value for sectors covered for which the reporting level is known (such as "52%"). Instead of "medium" or "high" please fill in a approximate value and flag it with "(e)" at the end, such as "50% (e)". Please fill in both, the global reporting cells and the detailed rows for individual sectors. If for example no sector is covered for your country, then fill into every cell "0", if all sectors are covered but all reporting levels are unknown fill in "UNK" in every cell. "N/A" should be replaced by either "N" or "UNK".


13. Accuracy Top
13.1. Accuracy - overall

All notified accidents at work to NSSI by employers or injured persons are processed statistically.

The specific BgSAW reference population is the number of persons insured for accident at work.
The whole reference population is processed statistically.

We do not work with the sample.
13.2. Sampling error

The statistical data collection is based on data from administrative registers.

We do not work with the sample.
13.2.1. Sampling error - indicators

We do not work with the sample.
13.3. Non-sampling error

All detected errors are corrected before the compilation of the final statistics for accidents at work.
13.3.1. Coverage error

Information about the coverage can be fond in the metadata.
13.3.1.1. Over-coverage - rate

Not applicable.
13.3.1.2. Common units - proportion

Not applicable.
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 Top
14.1. Timeliness

Bulgaria send statistical data to Eurostat until 30 June of year N+2, where N is the reference year in which the accidents are notified to the NSSI. (According to Article 3 from the Commission Regulation (EU) No 349/2011).

BgSAW data is usually released between June and September each year
14.1.1. Time lag - first result

Approximately 12 months after the end of the reference year.
14.1.2. Time lag - final result

Approximately 21 months after the end of the reference year.
14.2. Punctuality

Bulgaria transmit data in June before the legal deadline of 30 June of year N+2. All data is usually published until September of year N+2.
14.2.1. Punctuality - delivery and publication

See 14.2


15. Coherence and comparability Top
15.1. Comparability - geographical

The national and regional statistical data on accidents at work are in compliance with the acting Classification of Territorial Units for Statistical Purposes in Bulgaria (NUTS).
15.1.1. Asymmetry for mirror flow statistics - coefficient

Not applicable.
15.2. Comparability - over time

National Statistical Data on Accidents at Work are in compliance with the acting classifications and methodology of the particular year.
15.2.1. Length of comparable time series

The last major break for the National Statistical Data on Accidents at Work was between 2007 and 2008 - the change from NACE Rev.1 to NACE Rev. 2
Therefore, the length of the comparable time series is 14 years for the reference years 2008 - 2021.
15.3. Coherence - cross domain

The National Statistical Data on Accidents at Work may be compared with relevant data from the Labor Force Survey ad-hoc modules on accidents at work and other work-related health problems available from the same main data tree branch 'Health and safety at work (hsw)' for the relevant reference years.
15.3.1. Coherence - sub annual and annual statistics

Not applicable.
15.3.2. Coherence - National Accounts

Not applicable.
15.4. Coherence - internal

The National Statistical Data on Accidents at Work since 2008 have been in compliance and coherence with the acting classifications and methodology of each single year.


16. Cost and Burden Top

The same resources are used for carrying out tasks within the competence of the NSSI - information databases, employees, communication, working time, finances and organization.
Cost and burden associated with the collection and production of the statistic for accident at work are an integral part of all costs and burdens of NSSI.

There is currently no cost/burden analysis available for BgSAW data at national level.


17. Data revision Top
17.1. Data revision - policy

Final statistics on accidents at work are not subject to revision.
17.2. Data revision - practice

Final statistics on accidents at work are not subject to revision.
17.2.1. Data revision - average size

Not applicable.


18. Statistical processing Top
18.1. Source data

The statistical data set is based on administrative data sources of NSSI.

Main national BgSAW sources are the declaration of accident at work, a medical document proving the work incapacity or a certificate for death.

The numbers of accidents at work are extracted from the Register of accidents at work.

The specific reference population (including the number of employed persons) is extracted from the Register of the Insured Persons.
18.2. Frequency of data collection

Annual.
18.3. Data collection

BgSAW and ESAW data are extracted from administrative databases according to BgSAW and ESAW concepts, definitions, variables and classification.
18.4. Data validation

Various automatic and manual checks are performed on BgSAW data.

The data validation goes through three stages:

•At the data entry;
•At regional level by the NSSI Territorial Offices;
•At national level by the NSSI Head Office.

Validation activities include:
- correctness of codes for each variable;
- filling in the missing information;
- completeness of data for each variable;
- correction of technical errors;
- logical correlation between variables.
18.5. Data compilation

The data processing goes through the following stages:

  • Data entry;
  • Data validation;
  • Correction of errors and filling of missing information;
  • Producing standardized data file;
  • Producing statistical information.
18.5.1. Imputation - rate

Not applicable.
18.6. Adjustment

No adjustments for BgSAW data.
18.6.1. Seasonal adjustment

Not applicable.


19. Comment Top

Statistics on accidents at work are transmitted as a file - case by case. All ESAW variables from phase I, II, III are included (obligatory and voluntary).

Do not apply derogations.


Related metadata Top


Annexes Top