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Sample characteristics: Nigeria

Census/survey characteristics
Type Survey
Title General Household Survey, 2006-07
Statistical agency National Bureau of Statistics
Population universe ----
De jure or de facto De jure
Census/survey day ----
Field work period March 3, 2007 to March 26, 2007
Questionnaire A single form with eleven sections: A) Housing unit identification and conditions, B) Persons present in the household, C) Usual resident absent, D) Contraceptive prevalence, E) Births in the last 12 months, F) National programme on immunization, G) Child nutrition, H) Deaths in the last 12 months, I) Health, J) Household enterprises, and K) Household expenditure.
Type of fieldwork Direct enumeration
Microdata sample characteristics
Sample design The sample followed a two-stage, replicated and rotable design in which enumeration areas (EAs) demarcated for the 1991 Population Census served as the primary sampling units and housing units (HUs) as the secondary sampling units. Sixty EAs per state and 30 EAs in the Federal Capital Territory, Abuja were randomly selected. In each EA, 10 households were selected randomly from a list of all households in the EA. In total, 21,900 housing units from 2,190 enumeration areas were included in the sample. The selected EAs were distributed across urban and rural areas.
Sample fraction 0.006
Sample size (person records) 83700
Sample weights Weights computed by statistical agency should be used for most types of analysis.
Units identified in microdata
Dwellings No
Vacant units No
Households Yes
Collective dwellings No
Smallest geography State
Unit definitions
Dwellings Any building or structure with an entrance. It may be occupied by persons, be vacant, or uncompleted.
Households A household consists of a person or a group of persons living together under the same roof or in the same building/compound, who eat from the same pot and recognize themselves as a unit.
Collective dwellings A housing unit occupied largely by persons not related by blood. Examples include school hostels where children from different parents live during the school session, hotels where travelers and holidaymakers or people on business stay for a short period of time. Institutional housing units usually contain more rooms than residential buildings.