02286nas a2200313 4500008004100000022001400041245012100055210006900176260001600245300001200261490000800273520139100281653000901672653001301681653001101694653001101705653001401716653000901730653001701739653002801756653002201784100002301806700002401829700001901853700002501872700002101897700001801918856003601936 2010 eng d a1476-625600aSecondhand smoke, vascular disease, and dementia incidence: findings from the cardiovascular health cognition study.0 aSecondhand smoke vascular disease and dementia incidence finding c2010 Feb 01 a292-3020 v1713 a
Recent studies have found that smoking is associated with an increased risk of dementia, but the effects of secondhand smoke (SHS) on dementia risk are not known to have previously been studied. The authors used Cox proportional hazards marginal structural models to examine the association between self-reported lifetime household SHS exposure and risk of incident dementia over 6 years among 970 US participants in the Cardiovascular Health Cognition Study (performed from 1991 to 1999) who were never smokers and were free of clinical cardiovascular disease (CVD), dementia, and mild cognitive impairment at baseline. In addition, because prior studies have found that SHS is associated with increased risk of CVD and that CVD is associated with increased risk of dementia, the authors tested for interactions between SHS and measures of clinical and subclinical CVD on dementia risk. Moderate (16-25 years) and high (>25 years) SHS exposure levels were not independently associated with dementia risk; however, subjects with >25 years of SHS exposure and >25% carotid artery stenosis had a 3-fold increase (hazard ratio = 3.00, 95% confidence interval: 1.03, 9.72) in dementia risk compared with subjects with no/low (0-15 years) SHS exposure and < or =25% carotid artery stenosis. High lifetime SHS exposure may increase the risk of dementia in elderly with undiagnosed CVD.
10aAged10aDementia10aFemale10aHumans10aIncidence10aMale10aRisk Factors10aTobacco Smoke Pollution10aVascular Diseases1 aBarnes, Deborah, E1 aHaight, Thaddeus, J1 aMehta, Kala, M1 aCarlson, Michelle, C1 aKuller, Lewis, H1 aTager, Ira, B uhttps://chs-nhlbi.org/node/1157