Traffic-Related Air Pollution and Infections Jointly Increase the Risk of Alzheimer’s Disease in Older Adults
2024

Traffic-Related Air Pollution and Infections Increase Alzheimer's Disease Risk

publication Evidence: moderate

Author Information

Author(s): Ukraintseva Svetlana, Popov Vladimir, Duan Hongzhe, Yashkin Arseniy, Akushevich Igor, Arbeev Konstantin, Yashin Anatoliy

Primary Institution: Duke University

Hypothesis

How does the interplay between a history of infections and exposure to traffic-related air pollution affect the risks of Alzheimer's disease and other dementias in older adults?

Conclusion

The study found that having both a history of infections and exposure to traffic-related air pollution significantly increases the risk of developing Alzheimer's disease in older adults.

Supporting Evidence

  • The presence of both a history of infections and exposure to traffic-related air pollution was associated with a 177% higher risk of Alzheimer's disease onset after age 75.
  • Chronic exposure to traffic-related air pollution was measured by the distance of participants' homes to major roads.

Takeaway

If you get sick a lot and live near busy roads, you might have a higher chance of getting Alzheimer's when you get older.

Methodology

The study used ICD9/ICD10 codes for diagnoses and assessed exposure to traffic-related air pollution based on proximity to major roads.

Participant Demographics

UK Biobank participants aged 60-75.

Statistical Information

Confidence Interval

[1.86, 4.11]

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1093/geroni/igae098.2444

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