Air Pollution and Dementia Risk in Older Adults
Author Information
Author(s): So Rina, Andersen Zorana, Lim Youn-Hee, Zhang Jiawei, Tuffier Stéphane, Cole-Hunter Thomas
Primary Institution: University of Copenhagen
Hypothesis
Does long-term exposure to air pollution increase the risk of dementia among older individuals?
Conclusion
Long-term exposure to air pollution contributes to the development of dementia, particularly in vulnerable groups.
Supporting Evidence
- 81,731 out of 934,792 subjects developed dementia.
- Statistically significant associations were found for PM2.5, NO2, and BC with dementia incidence.
- Hazard ratios indicated increased risk with higher pollution levels.
Takeaway
Breathing dirty air for a long time can make older people more likely to get dementia, especially if they are already sick or have less money.
Methodology
Cox proportional hazard models were used to evaluate the association between air pollution and dementia incidence.
Limitations
The study is limited to a low-exposure setting in Denmark.
Participant Demographics
Danish residents aged 60 years or older.
Statistical Information
Confidence Interval
1.12-1.16 for PM2.5, 1.22-1.28 for NO2, 1.20-1.26 for BC
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website