Abstract P185: Fish Intake is Associated with Slower Cognitive Decline in Chinese Older Adults: a Longitudinal Study from the China Health and Nutrition Survey

Circulation ◽  
2014 ◽  
Vol 129 (suppl_1) ◽  
Author(s):  
Bo Qin ◽  
Brenda L Plassman ◽  
Linda S Adair ◽  
Lloyd J Edwards ◽  
Barry M Popkin ◽  
...  

Introduction: With global population aging, identifying public health strategies to prevent or reduce cognitive decline is of increasing importance. This study explores the potential role of a modifiable dietary behavior, fish consumption, to reduce the rate of cognitive decline in a cohort of Chinese older adults. Methods: This study comprised adults aged ≥55 who completed a brief cognitive screening test at two or more waves of the China Health and Nutrition Survey (CHNS) from 1997 to 2004. The cognitive screening test had a maximum of 31 points and assessed immediate and delayed memory, attention, calculation, and orientation. Diet was measured by 3-day 24-hour recalls. Multivariable-adjusted linear mixed-effects models were used to evaluate the relation of fish intake at baseline with changes in cognitive scores, adjusting for age, gender, region, urbanization index, education, household income, energy intake, physical activity, current alcohol use, current smoking, and consumption of fresh vegetables, fruits, fresh legumes, and high-fat meat, as well as time, and time interactions with each covariate. Based on the distribution of fish intake, we compared consumption ≥1 vs. <1 serving/week. Sensitivity analysis included 1) removing shellfish and/or preserved fish; 2) exploring potential confounding by or interactions with hypertension or body mass index; 3) excluding those with the lowest 10% baseline cognitive scores; 4) adjusting for dietary patterns to determine if associations were independent of overall eating patterns; 5) using propensity score analysis to ensure comparability of the fish intake groups. Results: The average follow-up among 1566 older adults was 5.3 years, with a mean annual rate of decline 0.40 points. Since age significantly modified the fish-cognitive change association (p=0.003), we stratified analysis by adults <65 (n=968) at first measure, and ≥65 (n=598). No significant associations were found among adults <65. Among adults ≥65, compared with persons who consumed fish <1 serving/week, the average rate of global cognitive decline was reduced by 0.35 points per year or 55% (p = 0.001) among those consuming fish ≥1 serving/week. Results remained consistent in sensitivity analysis. When the cognitive test items were analyzed based on the domain assessed, fish intake was associated with a significantly slower rate of decline in memory scores among adults ≥65. The average rate of memory decline was reduced by 60% among persons who consumed fish ≥1 serving/week. Conclusions: Fish intake of at least 1 serving per week predicted a slower rate of cognitive decline among Chinese adults ≥65 years old, particularly for immediate and delayed memory. The cognitive benefits of fish intake were not apparent among Chinese adults aged 55 to 64. This is the first study in Chinese older adults to evaluate the role of fish consumption on cognitive decline.

2014 ◽  
Vol 144 (10) ◽  
pp. 1579-1585 ◽  
Author(s):  
Bo Qin ◽  
Brenda L. Plassman ◽  
Lloyd J. Edwards ◽  
Barry M. Popkin ◽  
Linda S. Adair ◽  
...  

Nutrients ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 1183 ◽  
Author(s):  
Zumin Shi ◽  
Tahra El-Obeid ◽  
Malcolm Riley ◽  
Ming Li ◽  
Amanda Page ◽  
...  

We aimed to examine the association between chili intake and cognitive function in Chinese adults. This is a longitudinal study of 4852 adults (age 63.4 ± 7.7) attending the China Health and Nutrition Survey during 1991 and 2006. Cognitive function was assessed in 1997, 2000, 2004 and 2006. In total, 3302 completed cognitive screening tests in at least two surveys. Chili intake was assessed by a 3-day food record during home visits in each survey between 1991 and 2006. Multivariable mixed linear regression and logistic regression were used. Chili intake was inversely related to cognitive function. In fully adjusted models, including sociodemographic and lifestyle factors, compared with non-consumers, those whose cumulative average chili intake above 50 g/day had the regression coefficients (and 95% CI) for global cognitive function of −1.13 (−1.71–0.54). Compared with non-consumers, those with chili consumption above 50 g/day had the odds ratio (and 95% CI) of 2.12(1.63–2.77), 1.56(1.23–1.97) for self-reported poor memory and self-reported memory decline, respectively. The positive association between chili intake and cognitive decline was stronger among those with low BMI than those with high BMI. The longitudinal data indicate that higher chili intake is positively associated with cognitive decline in Chinese adults in both genders.


Author(s):  
Mi Namgung ◽  
B. Elizabeth Mercado Gonzalez ◽  
Seungwoo Park

This study examines the effect of the built environment on obesity in older adults, taking into consideration gender difference. In this regard, we ask two questions: (1) How does the built environment affect obesity in older adults? (2) Is there a gender difference in the effect of the built environment? To examine the research questions, this study uses the 2015 Korean National Health and Nutrition Survey and geographically weighted regression (GWR) analysis. The empirical analyses show that environmental factors have stronger effects on local obesity rates for older men than for older women, which indicates a gender difference in obesity. Based on these findings, we suggest that public health policies for obesity should consider the built environment as well as gender difference.


2021 ◽  
pp. 1-8
Author(s):  
Bin Yu ◽  
Andrew Steptoe ◽  
Yongjie Chen ◽  
Xiaohua Jia

Abstract Background Social isolation and loneliness have each been associated with cognitive decline, but most previous research is limited to Western populations. This study examined the relationships of social isolation and loneliness on cognitive function among Chinese older adults. Methods This study used two waves of data (2011 and 2015) from the China Health and Retirement Longitudinal Study and analyses were restricted to those respondents aged 50 and older. Social isolation, loneliness, and cognitive function were measured at baseline. Follow-up measures on cognitive function were obtained for 7761 participants (mean age = 60.97, s.d. = 7.31; male, 50.8%). Lagged dependent variable models adjusted for confounding factors were used to evaluate the association between baseline isolation, loneliness, and cognitive function at follow-up. Results Loneliness was significantly associated with the cognitive decline at follow-up (episodic memory: β = −0.03, p < 0.01; mental status: β = −0.03, p < 0.01) in the partially adjusted models. These associations became insignificant after additional confounding variables (chronic diseases, health behaviors, disabilities, and depressive symptoms) were taken into account (all p > 0.05). By contrast, social isolation was significantly associated with decreases in all cognitive function measures at follow-up (episodic memory: β = −0.05, p < 0.001; mental status: β = −0.03, p < 0.01) even after controlling for loneliness and all confounding variables. Conclusions Social isolation is associated with cognitive decline in Chinese older adults, and the relationships are independent of loneliness. These findings expand our knowledge about the links between social relationships and the cognitive function in non-Western populations.


2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 751-751
Author(s):  
Jianyun Wang ◽  
Renyao Zhong ◽  
Yaolin Pei ◽  
Bei Wu

Abstract This study aimed to examine the trajectory of depressive symptoms among Chinese older adults with disabilities and the role of adult children’s support in predicting trajectory classes of depressive symptoms. Data were drawn from three waves of the China Health and Retirement Longitudinal Study (2011-2015). The sample included 1420 disabled older adults age 60+ at the baseline and completed all three waves of the data. Growth mixture model shows two-class depressive symptoms trajectories: the higher risk group (25.49%) and the lower risk group (74.51%). Logistic regression results showed that respondents who received a longer term of adult children’s instrumental support were more likely to be classified in a higher risk group after controlling the covariates (OR=1.184, p&lt;0.05), while financial support and the frequency of contacts were not associated with the increased level of depressive symptoms. The policy implications were also discussed in this study.


2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 293-294
Author(s):  
Moriah Splonskowski ◽  
Holly Cooke ◽  
Claudia Jacova

Abstract Home-based cognitive assessment (HBCA) services are emerging as a convenient alternative to in-clinic cognitive assessment and may aid in mitigating barriers to detecting cognitive impairment (CI). It is unknown which older adults would be likely to participate in HBCA. Here we investigated the role of age and Subjective Cognitive Decline (SCD). SCD has demonstrated an increased risk for progression to CI/dementia. A nation-wide community-dwelling sample of 494 adults age 50+ were recruited via Amazon Mechanical Turk to complete an online survey assessing perceptions around HBCA and SCD. Our sample was 91.9% White and 66.8% female. It consisted of 174 respondents aged 50-60, 265 aged 61- 70, and 55 aged 71-79. Age groups were comparable with respect to their acceptance of cognitive assessment (Range 4-20, higher score=higher acceptance, 7.9±3.3, 8.15±3.2, 8.05±3.43) and SCD-Q total (43.1±5.8, 43.2±5.7, 43.3±5.7). Correlation analysis revealed a relationship between SCD-QSCD total and perceived likelihood of participation in HBCA for those ages 61-70 (r(263) = .222 p = .000), but not for ages 50-60 or 71-79 (r(172) = .102 p = .152; r(53) = -.102 p = .458). Our findings suggest that SCD influences the likelihood of participation in HBCA for older adults’ transitioning to old age (61-70). Findings show that for adults transitioning into old age (61-70), perceived cognitive state influences their likelihood of participation in HBCA. Importantly, concerns about CI/dementia may generate more favorable perceptions of HBCA for this group.


Circulation ◽  
2015 ◽  
Vol 131 (suppl_1) ◽  
Author(s):  
Bo Qin ◽  
Anthony J Viera ◽  
Linda S Adair ◽  
Brenda L Plassman ◽  
Lloyd J Edwards ◽  
...  

Introduction: Recent studies suggest higher visit-to-visit variability of blood pressure (BP) is associated with worse cognitive function, but evidence based on longitudinal cognitive testing has not been reported. Hypothesis: We assessed the hypothesis that higher visit-to-visit variability in BP, but not mean BP, would be associated with faster decline in cognitive function among community-dwelling older adults. Methods: This prospective cohort study comprised 1213 adults who had two or more waves of BP measurements as part of the China Health and Nutrition Survey from 1991, up to their first cognitive tests, and completed a cognitive screening test at two or more waves in 1997, 2000 or 2004. Mean (SD) age at first cognitive test was 64 (6) y. Outcomes were repeated measures of global cognitive scores (baseline mean ± SD: 19 ± 6 points), standardized composite cognitive and verbal memory scores (standardized units [SU]). Visit-to visit BP variability was expressed as the standard deviation [SD] or as the variation independent of mean (SD/mean^x, with x derived from curve fitting) in BP measures obtained at a mean interval of 3.6 years. Multivariable-adjusted linear mixed-effects models were used to determine the association of changes in cognitive scores with visit-to visit BP variability. Results: Higher visit-to-visit variability in systolic BP, but not mean systolic BP, was associated with a faster decline of cognitive function (adjusted mean difference [95% CI] for high vs. low tertile of SD in variability (Figure): global score -0.23 points/y [-0.41 to -0.04], composite scores -0.029 SU/y [-0.056 to -0.002] and verbal memory -0.044 SU/y [-0.075 to -0.012]). Higher visit-to-visit variability in diastolic BP was associated with a faster decline of global cognitive function only among adults 55-64 years, independent of mean diastolic BP. Conclusion: Higher long-term BP visit-to-visit variability predicted a faster rate of cognitive decline among older adults.


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