Objective To investigate the prevalence and related factors of mild cognitive impairment(MCI)in elderly people aged 60 years and above in Jiading Town of Jiading District,Shanghai.Methods This was a cross-sectional study.A total of 860 people were selected from 4 962 physical examinees(≥60 years old)from May to July 2020 by simple random sampling.Of them,48 people refused to accept the investigation or partial investigation,and 812 people accepted the full investigation.A questionnaire survey was conducted to collect basic information,demographic data,chronic diseases,and lifestyle of the participants.Accroding to the Petersen criteria,the occurrence of MCI was assessed by montreal cognitive assessment-basic(MoCA-B),activities of daily living(ADL)scale,and clinical dementia rating(CDR)scale.MCI was finally confirmed by a psychiatrist.MCI prevalence was calculated,and influencing factors were invetigated.Results Of the 812 people surveyed,791 valid questionnaires were collected,with an effective rate of 97.41％.A total of 755 people were included in the analysis,including 192 MCI people and 563 people with normal cognition.The incidence of MCI significantly increased with age(x2=19.120,P＜0.01).When the education years≤12 years,the incidence of MCI was negatively related to education years,while when the education years were＞12 years,the incidence of MCI was positively related to education years(x2=21.670,P＜0.01).The more children they had,the higher the incidence of MCI(x2=11.460,P＜0.01).The incidence of MCI in the peole who were primarily engaged in physical labor was significantly higher than that in the people with mental labor(x2=22.110,P＜0.01).The incidence of MCI in the people with central obesity was significantly higher than that in the people without central obesity(x2=4.661,P=0.031).The incidence of MCI in the people with diabetes was significantly higher than that in the people without diabetes(x2=6.012,P=0.014).The incidences of MCI were significantly higher in the people who had dietary restrictions and still smoked than those in the people who were not restricted,did not smoke,or had already quit smoking(x2=7.807 or 44.555,P=0.005 or P＜0.01).The incidences of MCI were significantly lower in the people who could speak foreign language and took exercise frequently than those in the people who could not speak foreign language and took exercise occasionally(x2=3.962 or 17.014,P=0.047 or 0.001).Binary logistic regression analysis was performed with statistically significant variables in the above univariate analysis(age,education years,the number of children,occupation,diabetes,central obesity,special dietary restriction,smoking,ability to speak foreign language,and exercise frequency)as independent variables and MCI as dependent variables.And the result showed physical labor(OR=2.525,95％CI:1.618-3.939,P＜0.001),special dietary restriction(OR=1.529,95％CI:1.045-2.237,P＜0.05)and smoking(OR=1.845,95％CI:1.479-2.302,P＜0.001)were risk factors for the occurrence of MCI,while high exercise frequency was a protective factor for the occurrence of MCI(OR=0.845,95％CI:0.742-0.964,P＜0.05).Conclusion There is a high prevalence of MCI in the elderly population in Jiading Town of Jiading District,Shanghai.The occupation,special dietary restriction,physical exercise and smoking are factors influencing the occurrence of MCI.
万方数据
维普
