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Sample characteristics: Peru

Census/survey characteristics
Type Census
Title National Censuses: IX Population and IV Housing, Peru 1993
Statistical agency National Institute of Statistics and Computing
Population universe All persons residing in the country.
De jure or de facto De facto
Census/survey day July 11, 1993
Field work period Urban area: July 11, 1993; Rural area: July 12-26, 1993
Questionnaire A single form with three sections for the dwelling, household, and individuals.
Type of fieldwork Direct enumeration via house-to-house visits and personal interviews.
Microdata sample characteristics
Sample design Systematic sample of every 10th household with a random start, drawn by the IPUMS
Sample fraction 10%
Sample size (person records) 2,206,424
Sample weights Self-weighting (expansion factor = 10).
Units identified in microdata
Dwellings Yes
Vacant units Yes
Households Yes
Collective dwellings Yes
Smallest geography Province
Unit definitions
Dwellings Any structurally separate and independent premises, made up of a room or group of rooms, meant for lodging one or more census households. These also include premises which, even though they are not meant for lodging people, are occupied as a place of residence by a census household at the time of conducting the Census.
Households The group of people, related or not, who occupy part of or a whole dwelling, share their main meals and together take care of other fundamental basic needs. As an exception, a household can be made up of a single person.
Collective dwellings A premises or group of premises meant for human habitation by people who usually don't have family ties and who generally live together for reasons of health, teaching, religion, work, tourism, or other causes.
Census/survey characteristics
Type Census
Title Nationala Censuses 2007: 11th Population Census and 6th Housing Census
Statistical agency National Institute of Statistics and Computing
Population universe All persons residing in the country.
De jure or de facto De facto
Census/survey day October 21, 2007
Field work period Urban area: October 21, 2007; Rural area: October 21 - November 4, 2007
Questionnaire A single form with three sections for the dwelling, household, and individuals
Type of fieldwork Direct enumeration via house-to-house visits and personal interviews.
Microdata sample characteristics
Sample design Systematic sample was drawn from the 15% stratified sample developed by the statistical office.
Sample fraction 10%
Sample size (person records) 2,745,895
Sample weights Self-weighting (expansion factor = 10).
Units identified in microdata
Dwellings Yes
Vacant units Yes
Households Yes
Collective dwellings Yes
Smallest geography Province
Unit definitions
Dwellings A dwelling is a building or independent building unit that is built, adapted or converted so that it may be inhabited by one or more people, either permanently or temporarily. It should have direct or independent access from the street or through public-use spaces, like hallways, patios, or stairs. It is normally separated by walls and a roof so that the people who live in it may separate themselves from others for cooking and eating, sleeping, and protection from the environment.
Households A household is a person or group of persons, related or not, who occupy all or part of a dwelling. They share at least the main meals and provide for their other basic needs from a common budget
Collective dwellings A collective dwelling is intended for habitation by persons, usually without family ties, who are subject to administrative rules and who live together for reasons of education, health, religion, work, or tourism, among others. Among collective dwellings there are 2 varieties: institutional and non-institutional.