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Microdati

Microdata files

Microdata files are collections of elementary data. Referring to Istat’s surveys, these files are released free of charge and in compliance with the principle of statistical secrecy and protection of personal data:

  • PUBLIC USE FILES, downloaded directly from this website;
  • STANDARD FILES, issued upon request with a valid reason for research purposes;
  • FILES FOR RESEARCH PURPOSES, issued to subjects belonging to universities or research bodies upon the presentation of a research project;
  • FILES FOR SISTAN, accessible only by the statistical offices of the National Statistical System.

Through the Laboratory for Elementary Data Analysis (ADELE), researchers and academics can access to microdata files of all Istat surveys. Moreover further special datasets (LINKED MICRODATA) are available for access at the Laboratory. Also the access to the Laboratory is free of charge.

PUBLIC USE FILES

Public use mIcro.STAT files are collections of elementary data downloaded directly and free of charge from the Istat website.

  • MIcro.STAT files are developed for some surveys starting from the relative File for research purpose to which methods of statistical disclosure control have been applied to reduce the risk of identification of statistical unit. In some cases, the calculations performed on the file mIcro.STAT may lead to results in some extent differing from those published;
  • Historical public use files are developed from standard files already produced in the past; historical public use files have a different structure from mIcro.STAT due to a different methodology of statistical confidentiality protection;
  • Other public use files are files containing elementary data which, following the legislation, can be disseminated in a disaggreted form.

To acquire such files it is necessary to register at the area of the Istat website dedicated to them and to accept the terms of use. Data are available in different formats (TXT, STATA, SAS, R).


STANDARD FILES

Standard files regard a number of surveys conducted on individuals and households. These files do not contain information for direct identification and in any case they are treated following procedures which do no enable them to be linked to respondents. They are issued upon request with a valid reason for research or study purposes. To acquire standard files the requesting party must:

  • briefly outline the purposes of use of the data;
  • indicate the place where the data are to be kept and processed;
  • undertake to use the data only for the defined purposes;
  • undertake not to provide third parties with elementary data, allowing access, under its own responsibility, only to people directly involved in the work for which the data have been requested.

To acquire such files it is necessary to register at the Cont@ct centre. Once registration has been completed, or for users already registered, the request must be formulated by selecting, in the Cont@ct centre the area “Collezioni campionarie di dati elementari (file standard)” (Sample Ccollections of elementary data (standard files)) and filling in the on-line request form.
For reference purposes only, a facsimile of data request form is provided.


FILES FOR RESEARCH PURPOSES

Files for research purposes are developed in relation to statistical surveys regarding individuals and households as well as enterprises, and are created specifically for the purposes of scientific research. These files are subject to particular statistical treatments that limit the identifiability of the respondent, while maintaining a high level of detailed information. Files for research purposes may be requested exclusively by:

An essential requirement for the issue of this type of file is the presentation of a research project documenting that data are processed for actual statistical or scientific purposes that are pertinent to the data requested. The request for files for research purposes is signed by a representative of the organisation (legal representative or any other person authorised, in accordance with relevant legislation, to express the commitment of the requesting organisation and to render such commitment binding with regard to third parties) and indicates the project’s scientific director and any other organisations taking part in the research itself.
The issue of such files is subject to the fulfilment of certain requirements, both subjective, relating to the requesting party’s organisation, and objective, relating to the characteristics of the research project for which the file is requested. In case of acceptance of the request, the project’s scientific director, who must comply with specific terms and conditions concerning the use of the microdata, is informed of procedures for downloading the file.

To acquire these files registration at the Cont@ct centre is required by the project’s scientific director. Once registration has been completed, or for users already registered, the request must be formulated by selecting, in the Cont@ct centre the area File di microdati per la ricerca (Microdata files for research purposes) and filling in the on-line form.
For reference purposes only, a facsimile of the data request form is provided.

European microdata files can be requested to Eurostat following the instructions contained in the link http://ec.europa.eu/eurostat/web/microdata


FILES FOR SISTAN

Requests for elementary data by Sistan departments

Directive no. 9 issued by Comstat (Committee for Directing and Co-ordinating Statistical Information), “Criteria and procedures concerning the communication of personal data within the National Statistical System”, brings Sistan fully into line with legislation concerning the protection of personal data (Legislative Decree 196/03 and ethical code of conduct). The directive deals with the transmission of previously collected personal data to a statistic bureau or agency or any other party in the System (in this specific case Istat) which requests them for statistical purposes.

Such requests may be made for the purpose of:

  1. the implementation of the National Statistical Programme (PSN);
  2. the execution of statistical data processes in connection with the institutional activities or local area of competence of the requesting party. In this case, a brief description of the project must be provided.

The transmission of personal data with information containing unique identification data must be limited to exceptional cases in which it is absolutely and strictly necessary (in which it is impossible to achieve established objectives without information for identification). The signer of the request assumes full responsibility with regard to the applicability of this condition.

In order to acquire information or microdata files the requesting party (director of the statistics Department or data controller/supervisor for public Bodies and Boards providing statistical information) must register at the Cont@ct centre. Once registration has been completed, or for users already registered, the request must be formulated by selecting, in the Cont@ct centre the area: “Dati elementari per uffici Sistan” (Elementary data for Sistan departments) and filling in the on-line form.

For reference purposes only, a facsimile of the data request form is provided.