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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 0.6%
Sample size (person records) 83,700
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.
Census/survey characteristics
Type Survey
Title General Household Survey, 2007-08
Statistical agency National Bureau of Statistics
Population universe ----
De jure or de facto De jure
Census/survey day ----
Field work period March 31, 2008 to April 19, 2008
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 were randomly selected. In each EA, 10 households were selected randomly from a list of all households in the EA. In total, 18,355 housing units from 2,204 enumeration areas interviewed included in the sample. The selected EAs were distributed across urban and rural areas.
Sample fraction 0.6%
Sample size (person records) 85,183
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.
Census/survey characteristics
Type Survey
Title General Household Survey, 2008-09
Statistical agency National Bureau of Statistics
Population universe ----
De jure or de facto De jure
Census/survey day ----
Field work period March 31, 2009 to April 19, 2009
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. The housing units were the Ultimate Sampling Units for the multi-subject survey. Sixty EAs were selected with equal probability from the list of EAs in each state of the federation and FCT, Abuja. Ten housing units were selected systematically in each EA after the completion of the listing exercise. Thereafter, all the households within the selected HUs were interviewed using GHS questionnaire. 2204 of an expected 2220 EAs were covered. At the housing unit level, 18,355 of 22,200 expected units were canvassed.
Sample fraction 0.7%
Sample size (person records) 107,425
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.
Census/survey characteristics
Type Survey
Title General Household Survey, 2009-10
Statistical agency National Bureau of Statistics
Population universe ----
De jure or de facto De jure
Census/survey day ----
Field work period March 31, 2010 to April 19, 2010
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 households as the secondary sampling units. Thirty EAs per state were randomly selected. In each EA, 15 households were selected randomly from a list of all households in the EA. In total, 450 hhs where selected for interview per state. Total, 16650 households from 1,110 EAs were selected for interview. The selected EAs were distributed across urban and rural areas.
Sample fraction 0.5%
Sample size (person records) 77,896
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.
Census/survey characteristics
Type Survey
Title General Household Survey, 2010-11
Statistical agency National Bureau of Statistics
Population universe ----
De jure or de facto De jure
Census/survey day ----
Field work period July 28, 2010 to August 31, 2010 and February to March, 2011
Questionnaire Three questionnaires: household questionnaire, agricultural questionnaire, and community/prices questionnaire. The household questionnaire collected information on size and composition of the household, as well as demographics, migration, education, work, time use, household assets, income, savings, and food consumption and security. The agricultural questionnaire collected information on crop and livestock production, storage, and sales. The community/prices questionnaire collected information on community and prices components.
Type of fieldwork Direct enumeration
Microdata sample characteristics
Sample design The sample followed a two-stage design in which enumeration areas (EAs) served as the primary sampling units and households as the secondary sampling units. A total of 500 EAs were selected based on probability proportional to size (PPS) of the total EAs in each state and the total households listed in those EAs. In each EA, 10 households were selected randomly from a list of all households in the EA. In total, 4,851 households and 29,993 individuals were interviewed in 500 EAs.
Sample fraction 0.5%
Sample size (person records) 72,191
Sample weights Weights computed by MPC in consultation with NBS 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 All types of structures occupied by members of the household. It may consist of a room(s) inside a house, a group of houses, a multi-storeyed house, or a hut or group of huts.
Households A household is a group of people who normally live in the same household unit, who are or are not related to one another, and and who eat from the same pot.
Collective dwellings ---