Abstract copyright UK Data Service and data collection copyright owner.The UK censuses took place on 21st April 1991. They were run by the Census Office for Northern Ireland, General Register Office for Scotland, and the Office of Population and Surveys for both England and Wales. The UK comprises the countries of England, Wales, Scotland and Northern Ireland.Statistics from the UK censuses help paint a picture of the nation and how we live. They provide a detailed snapshot of the population and its characteristics, and underpin funding allocation to provide public services.
The Northern Ireland Individual SAR is a 2% sample of individuals which was drawn from the full set of 1991 Census records. It was released to the then Census Microdata Unit (now the Centre for Census and Survey Research) in May 1994 who then undertook quality assurance work and produced documentation and additional derived variables. The dataset contains 31,967 person records and 53 variables. A number of protections are in place to ensure the anonymity of cases in the data including the low sampling fraction, grouping of some rare categories, limitation of geographical detail and record reordering so that the cases are not ordered geographically. Once the Household SAR (held under SN 7213) had been removed to avoid an overlap between the two files, remaining records were stratified into groups of 99 and two individuals were chosen from each group. Individuals in communal establishments were stratified geographically into groups of 50 people and one person was chosen at random from each group. Unlike Great Britain, 100% of Northern Ireland records were coded. For many variables, the codes that are used in the Northern Ireland SARs differ from those used in the GB SARs. Where this is the case, the Northern Ireland coding follows on numerically from the GB coding but it will not necessarily start at 1 and have a value for every succeeding integer. For example, 'household family type' uses quite different coding to the nearest GB equivalent 'family type': the GB codes run from 00 through to 08, whilst the Northern Ireland codes pick up from 09 and run through to 23. Further information, including guides and other documentation, may be found on the Cathie Marsh Centre for Survey Research Samples of Anonymised Records (SARS) website.
Main Topics:Population basesAge and marital statusCommunal establishmentsMedical and care establishmentsHotels and other establishmentsEthnic groupCountry of birthEconomic positionEconomic position and ethnic groupTerm-time addressPersons presentLong-term illness in householdsLong-term illness in communal establishmentsLong-term illness and economic positionMigrantsWholly moving householdsEthnic group of migrantsImputed residentsImputed householdsTenure and amenitiesCar availabilityRooms and household sizePersons per roomResidents 18 and overVisitor householdsStudents in householdsHouseholds: 1971/'81/'91 basesDependants in householdsDependants and long-term illnessCarersDependent children in householdsHouseholds with children aged 0 - 15Women in couples: economic positionEconomic position of household residentsAge & marital status of household residentsEarners and dependent childrenYoung adultsSingle years of ageHeadshipLone 'parents'Shared accommodationHousehold composition and housingHousehold composition and ethnic groupHousehold composition and long-term illnessMigrant household headsHouseholds with dependent children; housingHouseholds with pensioners; housingHouseholds with dependants; housingEthnic group; housingCountry of birth; hold heads and residentsCountry of birth and ethnic groupLanguage indicatorsLifestagesOccupancy (Occupied; vacant; other accommodation)Household spaces and occupancyHousehold space type and occupancyHousehold space type; rooms and household sizeHousehold space type; tenure and amenitiesHousehold space type; hold compositionDwellings and household spacesDwelling type and occupancyOccupancy and tenure of dwellingsDwelling type and tenureTenure of dwellings and household spacesOccupancy of dwellings and household spacesShared dwellingsWelsh Language (Wales only)/Gaelic Language (Scotland only)Floor level of accommodationOccupancy norm : householdsOccupancy norm : residentsComparison of 100% and 10% countsEconomic and employment status (10% Sample)Industry (10% Sample)Occupation (10% Sample)Hours worked (10% Sample)Occupation and Industry (10% Sample)Industry and hours worked (10% Sample)Occupation and hours worked (10% Sample)Industry and employment status (10% Sample)Working parents; hours worked (10% Sample)Occupation and employment status (10% Sample)Travel to work and SEG (10% Sample)Travel to work and car availability (10% Sample)Qualified manpower (10% Sample)Ethnic group of qualified manpower (10% Sample)SEG of households and families (10% Sample)Family type and tenure (10% Sample)Concealed families (10% Sample)Family composition (10% Sample)Social class of households (10% Sample)Social class and economic position (10% Sample)SEG and economic position (10% Sample)SEG; social class and ethnic group (10% Sample)Former industry of unemployed (10% Sample)Former occupation of unemployed (10% Sample)Armed forces (10% Sample)Armed forces; households (10% Sample)Occupation orders; 1980 classification (10% Sample)Occupations; Standard Occupational Classification (10% Sample)
Variables included in the 1991 Northern Ireland Individual SAR include: age, sex, marital status, employment status, religion, occupation, industry, social class, accommodation, bath/shower and indoor toilet facilities, tenure, economic position and social class of family head; and some limited information on other members of household, e.g. number of persons with long-term illness, number of pensioners and number of earners.
The SARs were drawn from the fully coded set of census records returned by households and institutions.
No sampling (total universe)
Compilation or synthesis of existing material
Self-administered questionnaire
