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Census Data Collection and Analysis for Demographic Research

Discover the evolution of census data collection methods and their importance in demographic research. Explore marital status trends and the need for inclusive questions. Dive into housing questions and tenure data. Stay informed on population bases and migration statistics.

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Census Data Collection and Analysis for Demographic Research

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  1. 2011 CensusUser Information Days Limavady 28 March 2006 Belfast 29 March 2006 Enniskillen 31 March 2006

  2. 2011 CensusTopic and Question Content Demography Population Bases & Definitions Households Migration Gillian Irons Census Statistical Development

  3. Demography

  4. Name 2001 There is a need for first name and surname to be collected separately, for data processing purposes 2007 1971-2001

  5. Marital Status 2001 2001 output • Single (never married) 33.1% • Married (first marriage) 48.5% • Re-married 2.7% • Separated 3.8% • Divorced 4.1% • Widowed 7.8% 1971-2001

  6. Initial User Consultation • Users felt that an option for civil partnerships should be included in the marital status question. • This would help to meet increasing requirements for data on sexual orientation.

  7. Initial Thoughts • The Civil Partnership Act 2004 has led to a legal • requirement to incorporate the option of being in a • civil partnership. • Should this be one question or two questions that • keep the concepts of marriage and civil • partnerships separate? Potential 2007 test question

  8. Relationship Matrix 2001 Census Question 1971-2001

  9. Initial User Consultation • Users felt that an option for civil partnerships should be included in the relationship matrix. • This would help to meet increasing requirements for data on sexual orientation.

  10. Initial Thoughts • Need to be able to identify concealed families. • May need response categories for step brother/ • sister. • Demand for an option for same sex civil partner. • In 2001 this question took up 2 pages. • A possible alternative may be using an individual • based question similar to that asked in ROI Census.

  11. Initial Thoughts Household Based Individual Based 2007 Census 2006 Test - ROI

  12. Population Bases & Definitions

  13. Population Base • The enumeration base which has been proposed at a UK level is: • Usual Residents plus Visitors • Main drivers for this were the requirements of users for: • Continuity of population measurement; • Outputs on a Usual Residence base; and • Information on people living at an address but not classified as usually resident. • A usual residents plus visitors enumeration base would: • Provide continuity with the 2001 Census and mid-year population estimates • Have the potential for producing alternative population bases.

  14. Visitors 2001 Census In 2001 the onus was on the householder to fill in the visitor information

  15. Visitors 2007 Test • The need to collect information • on visitors will require • additional space on the • questionnaire. • Information on name, address, • sex and date of birth is • currently regarded as essential • and other information is • emerging as desirable. • Space is likely to be allocated • for up to four visitors. Responsibility of visitors to provide the information

  16. Housing and Amenities

  17. Housing Questions • Bath / Shower & Toilet, Lowest Floor Level and More than One Floor: • Are they still needed? • What are they needed for? • Would a Housing Quality question be more useful?

  18. Bath / Shower and Toilet 2001 2001 output • Yes 99.3% • No 0.7% 1971-2001

  19. Lowest Floor Level 2001 2001 output • Basement or semi-basement 0.8% • Ground level (street level) 93.8% • 1st/2nd/3rd or 4th floor 5.2% • 5th floor or higher 0.2% 2001

  20. More than One Floor 2001 2001 results • Yes 68.7% • No 31.3% 2001

  21. Quality of Housing 2006 Scotland 2007 E&W Test Test Similar to GROS question. This may replace the Bath/Shower & Toilet and Lowest Floor Level questions.

  22. Tenure 2001 results 2001 • Owns outright 29.4% • Owns with a mortgage or loan 39.4% • Shared ownership 0.8% • NI Housing Executive 18.6% • Housing Association, Housing • co-operative or charitable trust 2.6% • Private landlord or letting agency 6.7% • Other 2.5% 1971-2001

  23. Tenure • In the 2001 Census, respondents • may have incorrectly classified • themselves as living rent free. • However some NIHE tenants claimed • that they were living rent free. • The most likely explanation is that • they were in receipt of housing • benefit • The definition of rents has therefore • been changed from 2001

  24. Second Residences Why collect information on 2nd residences ? • The idea of a usual residence is now less • straightforward as people may spend part of their • time at different addresses • Collecting information on second residences • presents the opportunity to produce some output for • alternative population bases • It would provide an indication of available housing • stock.

  25. Second Residences Potential 2007 test questions 2007

  26. Migration

  27. Usual Address One Year Ago 2001 2001 Results • The address shown on the front of the form 90.7% • No usual address one year ago 0.6% • Elsewhere 8.7% 1971-2001

  28. Migration • 2001 Census: • Included two questions • (usual address & address one • year ago) • It showed that • only 8.7% of the population had • an address elsewhere one year • ago • 0.6% had no usual address one • year ago

  29. Migration • 2011 Census: • Migration Topic Group getting under way (UK Level) • Will consider user need for additional questions • May suggest questions for 2007 Test • Need your input to ensure NI needs are represented

  30. Options for Additional Migration Questions? ROI 2006 • Country of previous usual residence? • Citizenship ? • Year of entry into UK ? • Country of parents birth ? • Or adapted ROI question – • ‘Have you ever lived outside the UK • for a continuous period of one year • or more?’

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