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    Home / Central Data Catalog / IPUMS / PRT_2011_PHC_V01_M_V01_A_IPUMS
ipums

Censos 2011: XV Receseamento Geral da População; V Receseamento Geral da Habitação - IPUMS Subset

Portugal, 2011
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Reference ID
PRT_2011_PHC_v01_M_v01_A_IPUMS
Producer(s)
Portugal Instituto Nacional de Estatística (INE), Minnesota Population Center
Collection(s)
Integrated Public Use Microdata Series (IPUMS)
Metadata
Documentation in PDF DDI/XML JSON
Study website
Created on
Jan 11, 2017
Last modified
Apr 19, 2019
Page views
17338
Downloads
2309
  • Study Description
  • Data Description
  • Documentation
  • Get Microdata
  • Identification
  • Version
  • Scope
  • Coverage
  • Producers and sponsors
  • Sampling
  • Data Collection
  • Questionnaires
  • Access policy
  • Disclaimer and copyrights
  • Metadata production

Identification

Survey ID Number
PRT_2011_PHC_v01_M_v01_A_IPUMS
Title
Censos 2011: XV Receseamento Geral da População; V Receseamento Geral da Habitação - IPUMS Subset
Country/Economy
Name Country code
Portugal PRT
Study type
Population and Housing Census [hh/popcen]
Abstract
IPUMS-International is an effort to inventory, preserve, harmonize, and disseminate census microdata from around the world. The project has collected the world's largest archive of publicly available census samples. The data are coded and documented consistently across countries and over time to facillitate comparative research. IPUMS-International makes these data available to qualified researchers free of charge through a web dissemination system.

The IPUMS project is a collaboration of the Minnesota Population Center, National Statistical Offices, and international data archives. Major funding is provided by the U.S. National Science Foundation and the Demographic and Behavioral Sciences Branch of the National Institute of Child Health and Human Development. Additional support is provided by the University of Minnesota Office of the Vice President for Research, the Minnesota Population Center, and Sun Microsystems.
Kind of Data
Census/enumeration data [cen]
Unit of Analysis
Dwelling

UNITS IDENTIFIED:
- Dwellings: No
- Vacant units: No
- Households: Yes
- Individuals: Yes
- Group quarters: Yes

UNIT DESCRIPTIONS:
- Dwellings: A dwelling is an enclosed and independent place that is built, rebuilt, expanded, transformed or used exclusively for living purposes during the reference period.
- Households: A conventional household is a group of people who reside in the same dwelling and have legal or de facto relationships with each other, and occupy an entire dwelling or part of a dwelling. Additionally, one independent person who occupies part of or the entire dwelling constitutes a conventional household.
- Group quarters: An institutional household is a group of people residing within a collective dwelling whom, regardless of family relationships between them, observe a common discipline, are beneficiaries of the objectives of an institution, and are governed by an internal or external entity of the group. Only individuals who had lived in the institution for more than a year, or were going to live there for at least 12 months were enumerated in the institution.

Version

Version Description
Version 6.4. The datasets contain selected variables from the original census microdata plus harmonized variables from the IPUMS-International database.

In v6.4, the research team continued to carry out improvements to geography, providing harmonized geographic units for the second administrative level for roughly half the countries. More information about IPUMS geography variables is available <a href='https://international.ipums.org/international/geography_variables.shtml'>here</a>. Also, approximately 100 integrated variables were renamed. Affected variables with their current and previous names are listed <a href='https://international.ipums.org/international/resources/misc_docs/renamed_variables_sept2015.pdf'>here</a>. Geography variable also underwent wholesale renaming.

In this update, IPUMS added 19 new samples for Armenia, Austria, Costa Rica, Ethiopia, France, Ghana, Mozambique, Paraguay, Portugal, Puerto Rico, South Africa, and Spain. Ethiopia, Mozambique, and Paraguay were newly added countries to IPUMS. Samples for other countries extend pre-existing series for those countries.
Version Date
2016-04-25

Scope

Topics
Topic Vocabulary
Technical Household Variables -- HOUSEHOLD IPUMS
Geography: M-Z Variables -- HOUSEHOLD IPUMS
Group Quarters Variables -- HOUSEHOLD IPUMS
Utilities Variables -- HOUSEHOLD IPUMS
Dwelling Characteristics Variables -- HOUSEHOLD IPUMS
Appliances, Mechanicals, Other Amenities Variables -- HOUSEHOLD IPUMS
Household Economic Variables -- HOUSEHOLD IPUMS
Technical Person Variables -- PERSON IPUMS
Demographic Variables -- PERSON IPUMS
Nativity and Birthplace Variables -- PERSON IPUMS
Migration Variables -- PERSON IPUMS
Education Variables -- PERSON IPUMS
Work Variables -- PERSON IPUMS
Income Variables -- PERSON IPUMS
Work: Occupation Variables -- PERSON IPUMS
Work: Industry Variables -- PERSON IPUMS
Ethnicity and Language Variables -- PERSON IPUMS
Constructed Family Interrelationship Variables -- PERSON IPUMS
Geography: Global Variables -- HOUSEHOLD IPUMS
Constructed Household Variables -- HOUSEHOLD IPUMS
Disability Variables -- PERSON IPUMS

Coverage

Geographic Coverage
National coverage
Geographic Unit
Eurostat NUTS3 region (Nomenclature of Territorial Units for Statistics)
Universe
All persons who were in the country at 12 am on 21 March 2011

Producers and sponsors

Primary investigators
Name Affiliation
Portugal Instituto Nacional de Estatística (INE)
Minnesota Population Center University of Minnesota

Sampling

Sampling Procedure
MICRODATA SOURCE: Portugal Instituto Nacional de Estatística (INE)

SAMPLE DESIGN: Systematic sample of every 20th household with a random start, drawn by the country

SAMPLE UNIT: household

SAMPLE FRACTION: 5%

SAMPLE SIZE (person records): 528,870
Weighting
Self-weighting (expansion factor=20)

Data Collection

Dates of Data Collection
Start End
2011-03-21 2011-04-24
Time periods
Start date End date
2011-03-21 2011-03-21
Data Collection Mode
Face-to-face [f2f]
Data Collection Notes
De jure and de facto, CENSUS DAY: March 21, 2011

Questionnaires

Questionnaires
Three separate enumeration forms were used to collect information on the dwelling, household, and individuals.

Access policy

Contacts
Name
Portugal Instituto Nacional de Estatística (INE)
Confidentiality
IPUMS-International distributes integrated microdata of individuals and households only by agreement of collaborating national statistical offices and under the strictest of confidence. Before data may be distributed to an individual researcher, an electronic license agreement must be signed and approved. To gain access to the data, a researcher must agree to the following: (1) Implement security measures to prevent unauthorized access to census microdata. Under IPUMS-International agreements with collaborating agencies, redistribution of the data to third parties is prohibited. (2) Use the microdata for the exclusive purposes of scholarly research and education. Researchers must explicitly agree to not use microdata acquired for any commercial or income-generating venture. (3) Maintain the confidentiality of persons, households, and other entities. Any attempt to ascertain the identity of persons or households from the microdata is prohibited. Alleging that a person or household has been identified is also prohibited. (4) Report all publications based on these data to IPUMS-International, which will in turn pass the information on to the relevant national statistical agencies. Once a project is approved, a password is issued and data may be acquired through the Internet. Penalties for violating the license include: revocation of the license, recall of all microdata acquired, filing of a motion of censure to the appropriate professional organizations, and civil prosecution under the relevant national or international statutes. These safeguards mirror the principles from the Joint ECE/Eurostat Work Session on Statistical Data Confidentiality. Employees of the Minnesota Population Center who work with the census microdata to produce the harmonized database also sign agreements to respect the confidentiality of the data. IPUMS-International works with each country's statistical office to minimize the risk of disclosure of respondent information. The details of the confidentiality protections vary across countries, but in all cases, names and detailed geographic information are suppressed and top-codes are imposed on variables such as income that might identify specific persons. In addition, IPUMS-International uses a variety of technical procedures to enhance confidentiality protection. These include the following: (1) Swapping an undisclosed fraction of records from one administrative district to another to make positive identification of individuals impossible. (2) Randomizing the placement of households within districts to disguise the order in which individuals were enumerated or the data processed. (3) Aggregating codes of sensitive characteristics (e.g., grouping together very small ethnic categories) (4) Top- and bottom-coding continuous variables to prevent identification of extreme cases. The safety record for public-use census microdata is apparently perfect. In almost four decades of use, there has not been a single verified breach of statistical confidentiality. The measures implemented by the IPUMS-International are designed to extend this record.
Access conditions
An adapted version of the dataset, harmonized for international comparability, is available from IPUMS-International (https://international.ipums.org/international/) under the following conditions:

IPUMS-International distributes integrated microdata of individuals and households only by agreement of collaborating national statistical offices and under the strictest of confidence. Before data may be distributed to an individual researcher, an electronic license agreement must be signed and approved. To gain access to the data, a researcher must agree to the following:

(1) Implement security measures to prevent unauthorized access to census microdata. Under IPUMS-International agreements with collaborating agencies, redistribution of the data to third parties is prohibited.

(2) Use the microdata for the exclusive purposes of scholarly research and education. Researchers must explicitly agree to not use microdata acquired for any commercial or income-generating venture.

(3) Maintain the confidentiality of persons, households, and other entities. Any attempt to ascertain the identity of persons or households from the microdata is prohibited. Alleging that a person or household has been identified is also prohibited.

(4) Report all publications based on these data to IPUMS-International, which will in turn pass the information on to the relevant national statistical agencies.

Once a project is approved, a password is issued and data may be acquired through the Internet. Penalties for violating the license include: revocation of the license, recall of all microdata acquired, filing of a motion of censure to the appropriate professional organizations, and civil prosecution under the relevant national or international statutes.

These safeguards mirror the principles from the Joint ECE/Eurostat Work Session on Statistical Data Confidentiality. Employees of the Minnesota Population Center who work with the census microdata to produce the harmonized database also sign agreements to respect the confidentiality of the data.
Citation requirements
Minnesota Population Center. Integrated Public Use Microdata Series, International: Version 6.4 [Machine-readable database]. Minneapolis: University of Minnesota, 2015.

Researchers should also acknowledge the statistical agency that originally produced the data:
Portugal, Portugal Instituto Nacional de Estatística (INE), Censos 2011: XV Receseamento Geral da População; V Receseamento Geral da Habitação

The licensing agreement for use of IPUMS-International data requires that users supply IPUMS-International with the title and full citation for any publications, research reports, or educational materials making use of the data or documentation.

Copies of such materials are also gratefully received at ipums@umn.edu.

Printed matter should be sent to:
IPUMS-International
Minnesota Population Center
University of Minnesota
50 Willey Hall
225 19th Avenue South
Minneapolis, MN 55455
Access authority
Name Affiliation URL
IPUMS International Minnesota Population Center Link

Disclaimer and copyrights

Disclaimer
The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses.
Copyright
(c) Copyright 2011, Portugal Instituto Nacional de Estatística (INE) and Minnesota Population Center

Metadata production

DDI Document ID
DDI_PRT_2011_PHC_v01_M_v01_A_IPUMS
Producers
Name Abbreviation Affiliation Role
Minnesota Population Center MPC University of Minnesota Integration Harmonization Documentation
Development Data Group DECDG The World Bank DDI editing
Date of Metadata Production
2016-04-25
DDI Document version
- v6.4 (April 2016)
Documentation of census data and harmonized variables as found in IPUMS-International. The International Household Survey Network (IHSN) contracted IPUMS-International for generating DDI and Dublin Core-compliant metadata related to population and housing census datasets from developing countries. The objective was to provide countries with detailed metadata in a format compatible with the DDI standard used by most of these countries, with a view to guarantee the preservation of the data and metadata, and the publishing of metadata.

The intellectual rights (including copyright) for the data and metadata in IPUMS are retained by the countries under a Memorandum of Understanding with the contributing countries. IPUMS-International has distribution rights to the metadata and data. The XML documents generated by this process are viewed as a distribution of the metadata.

Fields edited by the World Bank are: DDI ID and study ID to match World Bank study naming convention, as well as DDI Document Version and Version Description to reflect changes included in version 6.4.
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