Predictors of Cognitive Function in Community-Dwelling Older Adults by Age Group: Based on the 2017 National Survey of Older Korean Adults

Owing to a growing older adult population, dementia is emerging as an important health issue. Given that maintaining cognitive functions is crucial for the prevention of dementia, this study aimed to identify the predictors of cognitive function in community-dwelling older adults, through a secondary data analysis of the 2017 National Survey of Older Koreans. A total of 9836 participants were classified into three age groups—young-old (65–74 years), old-old (75–84 years), and oldest-old (≥85 years)—and were separately analyzed using multiple linear regression models. The final model explained 28.0%, 35.0%, and 37.0% of variance in cognitive function in the three age groups, respectively. The most potent predictors of cognitive function in the young-old were electronic device-based activities, instrumental activities of daily living (IADL), and nutrition management; the predictors for the old-old group were electronic device-based activities, IADL, and dementia screening, and those for the oldest-old group were frequency of contact with acquaintances, traveling, and religion. Thus, age group-specific interventions are needed to effectively promote cognitive function among older adults. Digital literacy education, use of community-based elderly welfare programs, opportunities for social interactions, and physical activities can help older adults in maintaining a functional status and muscle strengthening.

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Do Communication Patterns Affect the Association between Cognitive Impairment and Hearing Loss among Older Adults in Vietnam?

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18041603 ◽

2021 ◽

Vol 18 (4) ◽

pp. 1603

Author(s):

Tran Dai Tri Han ◽

Keiko Nakamura ◽

Kaoruko Seino ◽

Vo Nu Hong Duc ◽

Thang Van Vo

Keyword(s):

Older Adults ◽

Hearing Loss ◽

Cognitive Impairment ◽

Cognitive Function ◽

Vision Loss ◽

Community Dwelling ◽

Cross Sectional ◽

Ordinal Logistic Regression Analysis ◽

Communication Devices ◽

Community Dwelling Older Adults

This study examined the prevalence of cognitive impairment among older adults in central Vietnam and the roles of communication (with or without communication devices) in the association between cognitive impairment and hearing loss. This cross-sectional study was performed on 725 randomly selected community-dwelling older adults aged ≥60 years from Thua Thien Hue province, Vietnam. Participants attended a face-to-face survey. Sociodemographic characteristics, social interaction with or without communication devices, health status and cognitive function using the Mini-Mental State Examination were reported. Ordinal logistic regression analysis was performed to quantify the association between hearing loss and cognitive function by frequency of communication with and without devices. Mild and severe cognitive impairment had prevalence rates of 23.6% and 19.3%, respectively. Cognitive impairment was more prevalent among older adults with hearing-loss, vision loss and difficulties with instrumental activities of daily living (IADL). The association between hearing loss and cognitive impairment was not significant when older adults had frequent communication with others using devices. This study presented the relatively high prevalence of cognitive impairment in community-dwelling older adults in Vietnam. Frequent communication using devices attenuated the association between hearing loss and cognitive impairment.

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Accelerated Epigenetic Age in Normal Cognitive Aging of Korean Community-Dwelling Older Adults

Biological Research For Nursing ◽

10.1177/1099800420983896 ◽

2021 ◽

pp. 109980042098389

Author(s):

Jongmin Park ◽

Chang Won Won ◽

Leorey N. Saligan ◽

Youn-Jung Kim ◽

Yoonju Kim ◽

...

Keyword(s):

Older Adults ◽

Dna Methylation ◽

Cognitive Function ◽

Cognitive Aging ◽

Community Dwelling ◽

Test Results ◽

Cohen’S D ◽

Epigenetic Age ◽

Epigenetic Age Acceleration ◽

Community Dwelling Older Adults

Background: Epigenetic age acceleration has been studied as a promising biomarker of age-related conditions, including cognitive aging. This pilot study aims to explore potential cognitive aging-related biomarkers by investigating the relationship of epigenetic age acceleration and cognitive function and by examining the epigenetic age acceleration differences between successful cognitive aging (SCA) and normal cognitive aging (NCA) among Korean community-dwelling older adults (CDOAs). Methods: We used data and blood samples of Korean CDOAs from the Korean Frailty and Aging Cohort Study. The participants were classified into two groups, SCA (above the 50th percentile in all domains of cognitive function) and NCA. The genome-wide DNA methylation profiling array using Illumina Infinium MethylationEPIC BeadChip was used to calculate the following: the DNA methylation age, universal epigenetic age acceleration, intrinsic epigenetic age acceleration (IEAA), and extrinsic epigenetic age acceleration (EEAA). We also used Pearson correlation analysis and independent t-tests to analyze the data. Results: Universal age acceleration correlated with the Frontal Assessment Battery test results ( r = −0.42, p = 0.025); the EEAA correlated with the Word List Recognition test results ( r = −0.41, p = 0.027). There was a significant difference between SCA and NCA groups in IEAA ( p = 0.041, Cohen’s d = 0.82) and EEAA ( p = 0.042, Cohen’s d = 0.78). Conclusions: Epigenetic age acceleration can be used as a biomarker for early detection of cognitive decline in Korean community-dwelling older adults. Large longitudinal studies are warranted.

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Widowhood Status and Cognitive Function in Community-Dwelling Older Adults from the Mexican Health and Aging Study (MHAS)

Journal of Population Ageing ◽

10.1007/s12062-020-09322-2 ◽

2021 ◽

Author(s):

Mariana Barragán-García ◽

Ricardo Ramírez-Aldana ◽

Mariana López-Ortega ◽

Sergio Sánchez-García ◽

Carmen García-Peña

Keyword(s):

Older Adults ◽

Cognitive Function ◽

Community Dwelling ◽

Aging Study ◽

Community Dwelling Older Adults

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Association between childhood parental involvement and late‐life cognitive function: A population‐based cross‐sectional study among cognitively intact community‐dwelling older adults in Japan

Geriatrics and Gerontology International ◽

10.1111/ggi.14238 ◽

2021 ◽

Author(s):

Ayako Morita ◽

Takeo Fujiwara

Keyword(s):

Older Adults ◽

Cognitive Function ◽

Parental Involvement ◽

Population Based ◽

Cross Sectional Study ◽

Community Dwelling ◽

Sectional Study ◽

Cross Sectional ◽

Cognitively Intact ◽

Community Dwelling Older Adults

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Elder abuse and health outcomes among community-dwelling older adults in India: results of a national survey in 2017-2018

Journal of Elder Abuse & Neglect ◽

10.1080/08946566.2021.1970683 ◽

2021 ◽

pp. 1-15

Author(s):

Supa Pengpid ◽

Karl Peltzer

Keyword(s):

Older Adults ◽

Health Outcomes ◽

National Survey ◽

Elder Abuse ◽

Community Dwelling ◽

Community Dwelling Older Adults

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Effects of Tai Chi on cognitive function in community-dwelling older adults: A review

Geriatric Nursing ◽

10.1016/j.gerinurse.2013.10.013 ◽

2014 ◽

Vol 35 (1) ◽

pp. 9-19 ◽

Cited By ~ 32

Author(s):

Sally M. Miller ◽

Ruth E. Taylor-Piliae

Keyword(s):

Older Adults ◽

Cognitive Function ◽

Tai Chi ◽

Community Dwelling ◽

Community Dwelling Older Adults

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94 Association between Dual-Task Timed “UP and GO” Test and Occurrence of Falls According to Age Group (Young-Older or Old-Older Adults): A Longitudinal Observation Study

Age and Ageing ◽

10.1093/ageing/afz164.94 ◽

2019 ◽

Vol 48 (Supplement_4) ◽

pp. iv18-iv27

Author(s):

Tsuyoshi Asai ◽

Kensuke Oshima ◽

Yoshihiro Fukumoto ◽

Shogo Misu

Keyword(s):

Older Adults ◽

Older Adult ◽

Dual Task ◽

Community Dwelling ◽

Age Group ◽

Adult Group ◽

Observation Study ◽

Timed Up And Go ◽

Community Dwelling Older Adults

Abstract Aim To elucidate the association between the occurrence of falls and timed “up and go” (TUG) test score in a dual-task condition among community-dwelling older adults by age group. Methods This longitudinal observation study included 987 community-dwelling older adults at baseline. A TUG test (single-TUG) and a TUG test while counting aloud backward from 100 (dual-TUG) were conducted at baseline. The dual-task cost (DTC) value was computed from these results. Data on fall history were obtained using a self-administered questionnaire at the 1-year follow-up. At follow-up, 322 participants had dropped out and six participants had missing data for falls. The final analysis included 658 individuals (follow-up rate: 658/987, 67%) divided into a young-older adult group (aged 60–74 years) and an old-older adult group (aged 75 years or older). Associations between the occurrence of falls and TUG-related values were analyzed by age group using multivariate logistic regression models. Results For old-older adults, there were significant associations between the occurrence of falls and DTC value (odds ratio [OR] 0.981, 95% confidence interval [CI]: 0.963–0.999, p = 0.040) and single-TUG score (OR 1.129, 95% CI: 1.006–1.268, p = 0.039). However, no significant associations were observed for young-older adults. Conclusions Slower single-TUG test score and lower DTC value are associated with the occurrence of falls among old-older adults but not among young-older adults. Dual task assessment is useful for predicting falls in TUG fall assessment for old-older adults.

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