Is Long-term Exposure to Air Pollution Associated with Episodic Memory? A Longitudinal Study from Northern Sweden
| Autor: | Daniel Oudin Åström, Anna-Karin Sundström, Anna Oudin, Steven Nordin, Bertil Forsberg, Nina Lind, Maria Nordin |
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| Rok vydání: | 2017 |
| Předmět: |
Male
Gerontology Longitudinal study Memory Episodic Air pollution lcsh:Medicine 010501 environmental sciences Land use regression medicine.disease_cause 01 natural sciences Article Arbetsmedicin och miljömedicin 03 medical and health sciences 0302 clinical medicine Air Pollution Environmental health Humans Medicine Longitudinal Studies Cognitive decline lcsh:Science Episodic memory Aged 0105 earth and related environmental sciences Aged 80 and over Sweden Multidisciplinary business.industry lcsh:R Cognition Occupational Health and Environmental Health Middle Aged Confidence interval Term (time) lcsh:Q Female business 030217 neurology & neurosurgery |
| Zdroj: | Scientific Reports Scientific Reports, Vol 7, Iss 1, Pp 1-7 (2017) |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-017-13048-1 |
| Popis: | Associations between long-term exposure to ambient air pollution and cognitive function have been observed in a few longitudinal studies. Our aim was to investigate the association between long-term exposure to air pollution and episodic memory, a marker of early cognitive decline. We used data from the Betula study in Northern Sweden, and included participants 60 to 85 of age at inclusion, 1,469 persons in total. The participants were followed for up to 22 years, five years apart between 1988 and 2010. A composite of five tasks was used as a measure of episodic memory measure (EMM), and the five-year change in EMM score (ΔEMM) was calculated such that a participant could contribute with up to four measurement pairs. A Land Use Regression Model was used to estimate cumulative annual mean of NOx at the residential address of the participants (a marker for long-term exposure to traffic-related air pollution). There did not seem to be any association between exposure to traffic air pollution and episodic memory change, with a ΔEMM estimate of per 1 µg/m3 increase in NOx of 0.01 (95% Confidence Interval: −0.02,0.03). This is in contrast to a growing body of evidence suggesting associations between air pollution and cognitive function. |
| Databáze: | OpenAIRE |
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