Passive smoking as a risk factor for dementia and cognitive impairment: systematic review of observational studies.

ABSTRACT: ABSTRACTBackground:Smoking is a well-established risk factor for dementia, but the effects of passive smoking are unclear. We aimed to examine links between passive smoking and dementia or cognitive impairment.

Methods

We searched seven medical research databases: MEDLINE, Web of Science (Core Collection), Cochrane, EMBASE, PsycINFO, Scopus, and CINAHL Plus. Studies were included if they examined measures of passive smoking and either cognitive impairment or dementia.

Results

Of 1,425 records found, nine papers of varying methodologies were included after screening against inclusion criteria. Eight papers reported weak associations between passive smoking and either cognitive impairment or dementia. One paper only found this association alongside carotid artery stenosis. The

SUBMITTER: Stirland LE 

PROVIDER: S-EPMC6128010 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature