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Objective @#To investigate the mediating effect of negative emotions on visual impairment and resilience among middle-aged and elderly populations, so as to provide insights into improving psychological health among middle-aged and elderly populations.@*Methods@#Demographic information, visual impairment, negative emotions and resilience in the residents at ages of 45 years and older were collected through the database of the Yushu Physical and Mental Health Survey carried out by Institute of Psychology of Chinese Academy of Sciences. Structural equation model was used to analyze the effects of visual impairment and resilience and the mediating role of negative emotions. @*Results@#Totally 2 997 middle-aged and elderly populations were enrolled, with the median age of 50.00 (interquartile range, 47.00) years. There were 1 320 males (44.04%) and 1 677 females (55.96%), 1 627 illiterate persons (54.29%), and 2 780 married persons (92.76%). The scores of visual impairment, negative emotions and resilience were (6.79±2.59), (6.35±3.05) and (33.38±10.41) points, respectively. The results of structural equation model analysis showed that after adjusting for age, gender, educational level and marital status, visual impairment had a direct negative positive effect on resilience, with a direct effect value of -0.157 (95%CI: -0.177 to -0.137), and visual impairment could also negatively affect residence through negative emotions, with a mediating effect value of -0.112 (95%CI: -0.126 to -0.104), and the mediating effect contributed 41.64% to the total effect.@*Conclusion@#visual impairment could reduce residence directly or indirectly through the mediating effect of negative emotions among middle-aged and elderly populations.
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Objective To understand the prevalence of older people with mild cognitive impairment (MCI) in Zhejiang province and to provide the basis for elderly early detection and diagnosis of Alzheimer' s disease (AD).Methods 1211 more than 60-year-old elderly populations were selected in Zhejiang province,and were given screening questionnaire by general information,the montreal cognitive assessment (MoCA) and mini-mental state examination (MMSE).Results MCI prevalence of elderly populations in Zhejiang was 20.7％ and the AD prevalence was 4.5％.The patient' s gender,age,education level,nature of work,sleep status,marital status,whether or not participating in physical exercise,having smoking and drinking habits,whether combined with hypertension and diabetes for MCI prevalence of the elderly were statistically significant (P＜0.05).Conclusion We should pay attention to take appropriate measures in preventing the cognitive decline for populations as elderly,especially for women,senior,no spouse,engaged in manual labor,low education level,poor quality of sleep and no physical exercise,with smoking and drinking,combined with hypertension and diabetes.