Purpose:
This study aimed to investigate the effects of aCAS on cognitive functioning in a Chinese community population who were over 40 year-old and to find the domains of cognitive impairment which were mainly affected.
Methods:
Information was collected on the presence of CAS, which was assessed by Color Doppler Ultrasound, from the Asymptomatic Polyvascular Abnormalities Community study, and cognitive functioning was assessed by the score of the Montreal Cognitive Assessment (MoCA). Multivariate logistic regression was used to assess the relationships between aCAS and cognitive impairment.
Results:
A total of 812 (61.2% men, 55% of 40-60y) patients were included in this study. After adjusting for potential confounding factors, the associations between the aCAS and cognitive impairment remained significant [odds ratio(OR)(95% confidence interval, 95%CI)=1.812(1.049-3.127)]. Also, there were significant relationships between the aCAS and the domains of cognitive function like attention, language, abstraction and recall [OR(95%CI) 2.740(1.494-5.023), 2.005(1.184-3.396), 2.841(1.594-5.065), 4.674(2.478-8.818) respectively, P < 0.05). In addition, there were no interaction effects of age and other possible risk factors on the association.
Conclusion:
In the over 40 year-old Chinese community population, aCAS was an independent indicator of cognitive impairment, especially affecting the function of attention, language, abstraction and recall.
Table 1 Baseline demographic characteristics and cardiovascular risk factors between groups with/without cognitive impairment
Values are median (interquartile range) or number (percent).
Table 2 Unadjusted and Multivariate-adjusted OR (95% CI) for total and subtests of MoCA, according to groups with vs. without CAS.
*P<0.05;**P<0.001
OR: odd ratio; CI: confidence interval
Model 1: adjusted for age and gender.
Model 2: adjusted for age, gender, BMI, education, current smoking and alcohol consumption.
Model 3:adjusted for age, gender, BMI, education, current smoking, alcohol consumption hypertension, diabetes, hyperlipidemia, hs-CRP and Hcy.
Effects of communication goals and expectancies on language abstraction.
