Detection rate of cognitive impairment and its influencing factors among the elderly in Shenzhen City
Objective To understand the current status of cognitive impairment among the elderly population in Shenzhen City,to explore its potential influencing factors,and to provide a basis for dementia prevention among the elderly in Shenzhen City.Methods A total of 2,112 senior citizens aged ≥65 years in Shenzhen City were selected.One-on-one questionnaire interviews were conducted by trained investigators,and the Alzheimer's Disease-8(AD8)was used to screen the senior citizens'cognitive function.At the same time,demographic characteristics,lifestyle habits,and health status of the respondents were collected.AD8 score ≥2 served as the criterion for identifying cognitive impairment.Multivariate logistic regression analysis was performed to identify the factors influencing cognitive impairment among the elderly in Shenzhen City.Results The detection rate of cognitive impairment among the elderly in Shenzhen City was 30.35％(641/2,112),and the median AD8 score(P25-P75)was 1(0-2).Chi-square analysis revealed that 12 factors like age,gender,educational level,marital status,income and pre-retirement occupation had significantly impacted on cognitive impairment among the elderly.Further multivariate logistic regression analysis displayed that lifestyle and history of chronic diseases had impacts on cognitive impairment among the elderly.Among them,the detection rate of cognitive impairment in smokers was 80％higher than that in non-smokers(OR=1.800,95％CI:1.261-2.568),and high-frequency exercise(OR=0.640,95％CI:0.459-0.891)was a protective factor.Having a history of hyperlipidemia(OR=1.371,95％CI:1.108-1.696)and having a history of coronary heart disease(OR=1.304,95％CI:1.041-1.634)were identified as risk factors for cognitive impairment among the elderly.In addition,age,gender,educational level and income were found to have impacts on cognitive impairment.Conclusion Cognitive impairment is common among the elderly in Shenzhen City,which is related to their ages,socio-economic status,lifestyle habits and history of chronic diseases.Physical and mental health services should be provided for elderly high-risk groups,which are conducive to reducing the risk of cognitive impairment,promoting their mental health,and enhancing their sense of happiness.
the elderlycognitive impairmentdetection rateinfluencing factorcommunity
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