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Project details

Housing Tenure and Car Ownership: Why Do They Predict Health and Longevity?
Award No. L128251017

Contact:
Professor Sally Macintyre
MRC Social and Public Health Sciences Unit
6 Lilybank Gardens
Glasgow G12 8RZ
Tel: +44 (0)141 3573949
Fax: +44 (0)141 3372389
Click to email

Principal Researchers:
Professor Sally Macintyre
Ms. Anne Ellaway
Mr. Ade Kearns
Ms. Rosemary Hiscock

Duration of Research:
January 1997 - January 2000

Research areas: Area inequalities/influences; Gender inequalities; Housing
Project Plan Project Summary

Background return to top
Owning one's own home and owning a car are associated with a healthier and longer life. Conversely, living in a rented home and in a household without a car increase one's chances of reporting a long-term illness and one's risk of premature death.

While these patterns are well-recognised, little is known about why tenure and car access are so strongly linked to health and longevity. Existing literature tends to assume that there is no direct link between tenure or car access and health. Instead, owning one's home and having a car are seen to be predictive of health and longevity simply because they are markers of other factors which directly influence health (such as income or wealth, or psychological characteristics like self-efficacy or mastery). However, it may be that aspects of tenure and car ownership - for example, housing conditions or quality of residential environment, or ease of access to services - are themselves directly health-promoting or health-damaging.

Aims and Objectives
The aim of the study is to investigate whether housing tenure and car ownership are associated with health simply because they are markers for income/wealth or psychological traits, or because they have direct effects on health. Focusing on people of working age, the objectives are:

  • to examine the associations between long-term physical illness and mental health on the one hand, and housing tenure and car ownership on the other, taking into account income/wealth and psychological characteristics;
  • to examine the role of housing quality, residential environment and use of cars in influencing long-term physical illness and mental health, and in helping to explain observed associations between tenure, car access and health;
  • to examine the personal and social significance of housing tenure and car ownership in peoples' everyday lives;
  • to provide a more comprehensive view of regional and urban planning, which would relate health to housing, community development and employment initiatives.

Study Design
The study has two components:

  • a postal survey of a representative sample of 2,000 working-age adults in the Central Clydeside conurbation;
  • in-depth interviews with a sub-sample of around 80 respondents.

The survey will collect data on income, wealth (housing equity, pensions, savings etc.), housing tenure and housing conditions, features of the neighbourhood, car ownership and use, psychological characteristics, mental health and long-term illness. This will permit statistical modelling of the relationship between tenure and car access and health, taking into account income/wealth, psychological characteristics and features of housing, the area and car use.

The in-depth interviews will examine in more detail how renting/owning a home and having/not having access to a car affect people's everyday lives, lifestyles and experience of health and work. Comparing and combining quantitative survey data with richer qualitative data, the study design will clarify the meaning of measures commonly used in public and private sector surveys and in small area classifications.

Policy Implications
Tenants in Local Authority housing and people in households with no cars not only experience social disadvantage but are at greater risk of poor health and early death. If recent government/public health targets are to be reached, then the health of more disadvantaged groups must be brought up to the levels currently enjoyed by more advantaged groups. Reaching these targets requires action not only from the health care sector but also from other central and local government agencies (environment, housing, transport, employment and education etc.). Evidence about the health promoting or health damaging features of tenure and car ownership can be fed into health impact assessments of local and central policy options. It can also help to answer recent calls for urban planning to avoid a sectoral, fragmented delivery of urban regeneration initiatives and to adopt a more comprehensive approach relating health to housing, community development and employment initiatives.

Project Summaryreturn to top
Reducing health inequalities turns on policies which tackle those aspects of poor socio-economic position which are health damaging. The project examined two aspects known to be associated with health and longevity, looking at whether and how owning one's home and owning a car might be health promoting and how, conversely, relying on public housing and public transport might be health damaging. The project investigated whether housing tenure and car ownership are associated with health, simply because they are markers for income and wealth and/or of psychological characteristics, or because they also have direct effects on health. It is the first study to be designed specifically to examine this issue.

The project involved a quantitative survey of a representative sample of 3000 adults in the West of Scotland, together with a qualitative study of a sub-sample of 43. It used eight self-reported measures of physical and mental health, including self-rated health, limiting longstanding illness, number of symptoms, depression and anxiety subscales of the Hospital Anxiety and Depression Scale (HADS) and number of General Practice visits in the last 12 months.

Key findings

  • All eight health measures were significantly associated with housing tenure and car access. This was in part because tenure and car access were related to socio-demographic characteristics, such as income, social class, age, marital status and sex, which were themselves independently related to health.
  • Housing tenure and car access were also related to psychological resources (self-esteem, mastery and ontological security) which were themselves independently related to health.
  • Over and above these socio-economic, demographic and psycho-social associations, home and car ownership were also found to confer physical and psychological benefits which were health-promoting. These included (a) access to amenities (b) protection from such problems as damp and cold housing, noisy or abusive neighbours, and threats to personal safety, and (c) the inconvenience and insecurity of public transport. Housing quality was the most important mediator between tenure and health, followed by the quality of the neighbourhood, and lastly by housing style.
  • The associations between the two asset-based measures used in the study were not the same for all population groups. Most notably, housing tenure and car access were more strongly associated with health and psycho-social assets among men than women, and housing tenure was more strongly associated with health among single than cohabiting people. Car access was not a significant predictor of health for women, but was for men. Looking in more depth at the association between car ownership and health, cars were coded by car market segment (executive, sport etc). Men with access to more expensive cars had the highest self-esteem and mastery scores, and better health, but market segment was not predictive for women.
  • Building on quantitative and qualitative findings from the project, the concept of ontological security has been extended to shed light on the practical and psycho-social benefits of home ownership and access to cars. Both owning a home and a car seem to provide a greater sense of personal security and protection from physical and personal threats, and a sense of doing well in life. However, in principle, social renting and use of public transport were seen to have some advantages, such as lower costs and fewer personal responsibilities; it was the ways in which they were provided (such as poor quality dwellings or erratic and dirty public transport) which were seen to be stressful, inconvenient and health damaging.
  • Methodological contributions of the project included the development of a wider range of measures of psycho-social resources, including ontological security, via a mixture of quantitative and qualitative methods. It also tested the reliability of area-based measures of deprivation, like ACORN, in predicting the socio-economic circumstances of households in the area. Area-based indices were found to be an unreliable marker of household socio-economic status.
  • With respect to policy, the project does not suggest that owner-occupation and car ownership have any intrinsic benefits for health. Rather, they suggest that public renting and public transport, as currently configured, have health-damaging effects through both physical and psycho-social pathways. Policies which reduced these effects - for example, by improving the physical fabric of public housing and the perceived threats to personal safety on public transport - may help to reduce inequalities in health.
return to top
Newsletter articles: Area inequalities in health
Findings: Housing tenure and car ownership: why do they predict health and longevity?

 

 
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