Visual trajectories and risk of physical and cognitive impairment among older Chinese adults

Author(s):  
Guiying Cao ◽  
Kaipeng Wang ◽  
Ling Han ◽  
Qin Zhang ◽  
Shanshan Yao ◽  
...  
2008 ◽  
Vol 88 (1) ◽  
pp. 224-231 ◽  
Author(s):  
Tze-Pin Ng ◽  
Lei Feng ◽  
Mathew Niti ◽  
Ee-Heok Kua ◽  
Keng-Bee Yap

Author(s):  
H. Fangfang ◽  
H. Xiao ◽  
Z. Shuai ◽  
W. Qiong ◽  
Z. Jingya ◽  
...  

Background: Many studies have addressed the relationship between environmental factors and cognitive function; however, evidence from China is very rare. Objectives: To discuss the relationship between the living and built environment and cognitive function among older Chinese adults. Design: The Anhui Healthy Longevity Survey (AHLS) was used to investigate the ability to control major non-communicable diseases through behavioural techniques among adults aged 60 or older dwelling in Anhui Province. A multistage sampling strategy was used to obtain a representative sample. Cross-sectional data were collected for the analyses. Setting: The included participants were recruited from four selected cities in Anhui Province, China. Participants: The participants were adults aged 60 or older and resided in the selected urban or rural communities. Measurements: The Mini Mental State Examination was used to measure the cognitive status of the participants. Mild cognitive impairment (MCI) was defined as illiteracy with MMSE scores lower than 18, MMSE scores lower than 21 among those educated for 0–6 years, or MMSE scores lower than 25 among those with 6 or more years of education. The living environment was assessed by asking the participants about their daily living conditions. The distances between the participants’ dwellings and the nearest facilities and the proportions of green/blue spaces within 800 m buffers were calculated based on the textural address to indicate the built environment. Results: The male participants who lived in a non-dusty environment had higher MMSE scores (β=0.828, 95% CI: 0.240, 1.416, p=0.006) and lower risks of mild cognitive impairment (MCI) (OR=0.651, 95% CI: 0.488, 0.868, p=0.003), and the male participants with no access to recreation spaces had lower MMSE scores (β=-1.107, 95% CI: -1.531, -0.684, p<0.001) and higher risks of MCI (OR=1.403, 95% CI: 1.134, 1.737, p=0.002). The female participants who lived far from a supermarket had significantly lower MMSE scores (Q3:β=-0.750, 95% CI: -1.266, -0.233, p adjusted=0.036; Q4: β=-1.184, 95% CI: -1.745, -0.624, p adjusted<0.001) than those who lived near a supermarket (Q1). Conclusions: The living environment and built environment might have sex-specific associations with cognitive function among older adults.


2021 ◽  
pp. 1-10
Author(s):  
Ming Zhang ◽  
Xiaozhen Lv ◽  
Yulu Chen ◽  
Lihui Tu ◽  
Zili Fan ◽  
...  

ABSTRACT Study objectives: Based on a cohort from the Chinese Longitudinal Healthy Longevity Survey (CLHLS), we aimed to evaluate the relationship between sleep duration and the incidence of cognitive impairment among older Chinese adults. Methods: We conducted a prospective analysis based on 3692 participants from the CLHLS at baseline (in 2011), and as a 3-year follow-up (till 2014), 531 participants (14.4%) had cognitive impairment, which was defined as a Mini-Mental State Examination score <24. Sleep duration was classified into three groups: short (≤5 hours/day), normal (>5 but <10 hours), and long (≥10 hours/day). A logistic regression model was used to examine the association between baseline sleep duration and cognitive impairment after adjusting for sociodemographic data, living habits, and health conditions. Results: Five hundred sixty-two participants (15.2%) were in the short-duration group, and 608 participants (16.5%) were in the long-duration group. After adjusting for multiple potential confounders, compared with normal sleep duration, long sleep duration was associated with the incidence of cognitive impairment (OR = 1.309, 95% CI: 1.019–1.683), especially among men (OR = 1.527, 95% CI: 1.041–2.240) and those having a primary and above education level (OR = 1.559, 95% CI: 1.029–2.361). No significant association was observed between short sleep duration and cognitive impairment (OR = 0.860, 95% CI: 0.646–1.145). Conclusions: Excessive sleep may increase the risk of cognitive impairment in older individuals. It may be a suggestive sign of early neurodegeneration and may be a useful clinical tool to identify those at a higher risk of progressing to cognitive impairment.


2020 ◽  
Vol 35 ◽  
pp. 153331752096510
Author(s):  
Zhizhen Cui ◽  
Guizhen Cao ◽  
Youyi Wang ◽  
Qinghua Ma ◽  
Congju Wang ◽  
...  

Objective: To find a suitable dividing value to classify cystatin C and evaluate the association between cognition and levels of cystatin C. Methods: Using data from the China Health and Retirement Longitudinal Study, We conducted a longitudinal analysis of a prospective cohort of 6,869 middle-aged and older Chinese without cognitive impairment at baseline. Levels of cystatin C were categorized into 2 groups by method of decision tree. Logistic regression models evaluated whether cystatin C was related to cognitive impairment. Results: Respondents were categorized as lower levels of cystatin C and higher levels of cystatin C, cut-point was 1.11 mg/L. Higher levels of cystatin C was associated with the odds of cognitive impairment (OR, 1.56; 95% CI, 1.10-2.22) after multivariable adjustment. Respondents with higher levels of cystatin C had worse cognition scores. Conclusions: We found a suitable dividing value of cystatin C in middle-aged and older Chinese.


2019 ◽  
Vol 32 (7-8) ◽  
pp. 573-581 ◽  
Author(s):  
Zi Zhou ◽  
Fanzhen Mao ◽  
Yaofeng Han ◽  
Jian Fu ◽  
Ya Fang

Objective: The objective of this study was to explore the association between social engagement and cognitive impairment with psychological well-being (PWB) as a mediator in older Chinese adults and to further test the gender differences in this association. Method: Data were drawn from the Chinese Longitudinal Healthy Longevity Survey of older Chinese adults, aged 65 and older ( N = 6,998). The total effect was decomposed into direct and indirect effects by logistic regression based on the Karlson, Holm, and Breen method. Results: Higher social engagement was significantly associated with lower odds of cognitive impairment, odds ratio (OR) = 0.89, 95% confidence interval (CI) = [0.82, 0.97]. Moreover, a better PWB would decrease the odds of cognitive impairment (OR = 0.96, 95% CI = [0.94, 0.98]). The mediating effect was 15.4% in the full sample and 13.1% in the men subsample. However, mediation was not significant in the women subsample. Discussion: Higher social engagement was associated with a decreased odds of cognitive impairment in older men, and this association was mediated by PWB.


2017 ◽  
Vol 22 (9) ◽  
pp. 1237-1243 ◽  
Author(s):  
Ying-Jie Gu ◽  
Chun-Hong He ◽  
Su Li ◽  
Shu-Yi Zhang ◽  
Sheng-Yu Duan ◽  
...  

Author(s):  
Qian Song ◽  
Haowei Wang ◽  
Jeffery A Burr

Abstract Objectives We investigated whether there was a “high outmigration penalty” for psychological health among older adults in rural China by assessing 2 potential community stressors associated with major sociodemographic changes in the community—increased outmigration and older adult density. We also investigated whether disparities in community economic conditions moderated the association between community stressors and depressive symptoms. Methods We employed 3 waves of data from the China Health and Retirement Longitudinal Study (2011–2015), using multilevel negative binomial models to address our research questions. Results Our results supported the “high outmigration penalty” hypothesis. Older adults living in low-income rural communities may experience an aggravated mental health penalty compared to those living in high-income rural communities. Higher older adult density was also associated with more depressive symptoms but only in less wealthy communities. Community differences in economic conditions were key factors buffering the high outmigration disadvantage associated with the psychological health of older Chinese adults. Discussion Rural outmigration may have deepened existing intercommunity health disparities among older adults. Policies should be developed to address community-level factors negatively associated with the well-being of older Chinese adults living in high outmigration and less wealthy rural communities.


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