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Climate shock: Moving to colder climates and immigrant mortality.
1Department of Sociology, McGill University, 855 Sherbrooke Street West, Canada.
Social Science & Medicine (1982)
|July 16, 2019
Summary
Immigrant mortality advantage disappears when moving from warm to cold climates. Those migrating to colder regions face higher cardiovascular mortality rates compared to native populations.
Area of Science:
- Epidemiology
- Environmental Health
- Demography
Background:
- Immigrants often exhibit lower mortality rates than native-born populations.
- The 'immigrant paradox' in health may be influenced by environmental factors.
- Potential negative health impacts of cold weather on immigrant populations are understudied.
Purpose of the Study:
- To investigate if climate differences between origin and destination countries moderate immigrant mortality advantage.
- To examine the impact of climate shifts on all-cause and cardiovascular mortality among immigrants.
Main Methods:
- Meta-regression analysis of 890 rate ratios from 55 publications.
- Comparison of all-cause and cardiovascular mortality between immigrants and native populations.
- Inclusion of data from 70 origin countries and 12 destination countries.
Main Results:
- Immigrants moving between climatically similar regions retain a mortality advantage.
- Immigrants migrating from warmer to colder climates do not show a mortality advantage.
- This group experiences higher cardiovascular mortality rates than native populations.
Conclusions:
- Climate transition is a critical factor influencing immigrant health outcomes.
- The health benefits for immigrants may be context-dependent, particularly regarding climate.
- Further research should consider environmental acclimatization in immigrant health studies.
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