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Does migration exaggerate the relationship between deprivation and limiting long-term illness? A Scottish analysis
Paul Boyle1, Paul Norman, Philip Rees
1School of Geography and Geosciences, University of St Andrews, Fife, UK. p.boyle@st-andrews.ac.uk
Social Science & Medicine (1982)
|July 26, 2002
Summary
Migration patterns can exaggerate the apparent link between long-term illness and material deprivation. Healthy individuals may move from deprived areas, while ill individuals may move towards them, skewing health and environmental studies.
Area of Science:
- Epidemiology
- Sociology
- Public Health
Background:
- Epidemiological studies often overlook migration's impact on health-environment links.
- Population movement can confound the observed relationship between socioeconomic status and illness.
Purpose of the Study:
- To investigate how migration influences the association between limiting long-term illness and material deprivation in Scotland.
- To determine if migration patterns of healthy versus ill individuals distort the health-deprivation relationship.
Main Methods:
- Utilized individual-level 1991 census data for Scotland.
- Analyzed self-reported limiting long-term illness and material deprivation.
- Controlled for individual characteristics and the role of public housing.
Main Results:
- Evidence suggests migration patterns may indeed exaggerate the link between deprivation and illness.
- Healthy individuals appear more likely to move away from deprived areas.
- Ill individuals may be more likely to move towards deprived areas.
Conclusions:
- Migration is a significant confounding factor in health and deprivation research.
- Apparent associations between illness and deprivation may be overestimated due to migration.
- Further research should account for population mobility in epidemiological studies.