Predicting cognitive function of the Malaysian elderly: a structural equation modelling approach

Foong, Hui Foh; Hamid, Tengku Aizan; Ibrahim, Rahimah; Haron, Sharifah Azizah; Shahar, Suzana

doi:10.1080/13607863.2016.1231172

Cited by 18 publications

(23 citation statements)

References 142 publications

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“…The mean ± SD years of education and household income of the sample were 5.1 ± 4.00 years and 1310.2 ± 2368.87 ringgit, respectively. Details of the sample’s sociodemographic characteristics have been previously presented elsewhere …”

Section: Resultsmentioning

confidence: 99%

“…A multistage proportional cluster random sampling technique was used to obtain a representative sample of the Malaysian population. The detailed methodology of this study has been published elsewhere . A total of 2322 older adults participated in this study, with a response rate of 90%.…”

Section: Methodsmentioning

confidence: 99%

“…Four indicator variables—stress, depression, loneliness, and neuroticism—were included to represent the latent psychosocial stress variable. A previous study that used these four indicator variables to represent psychosocial stress construct was published elsewhere …”

Section: Methodsmentioning

confidence: 99%

“…The detailed methodology of this study has been published elsewhere. 5 A total of 2322 older adults participated in this study, with a response rate of 90%. The characteristics of the sample broadly represented the general population of older community-dwelling persons in Peninsular Malaysia.…”

Section: Design Participants and Proceduresmentioning

confidence: 99%

“…4 A recent cross-sectional study showed that psychosocial stress negatively predicted cognitive function in the older Malaysian adults. 5 Moreover, cohort studies demonstrated that individual components of psychosocial stress, including perceived stress, 6 depression, 7 neuroticism, 8 and loneliness, 9 were associated with cognitive decline in later life. The stress and cognitive function model summarizes that chronic stress leads to the loss of neurons, particularly in the hippocampus, which results in cognitive impairment.…”

Section: Introductionmentioning

confidence: 99%

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Information processing speed as a mediator between psychosocial stress and global cognition in older adults

et al. 2018

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Background: The link between psychosocial stress and cognitive function is complex, and previous studies have indicated that it may be mediated by processing speed. Therefore, the main aim of this study was to examine whether processing speed mediates the association between psychosocial stress and global cognition in older adults. Moreover, the moderating role of gender in this model is examined as well. Methods: The study included 2322 community-dwelling older adults in Malaysia who were randomly selected through a multistage proportional cluster random sampling technique. Global cognition construct was measured by the Mini-Mental State Examination and Montreal Cognitive Assessment; psychosocial stress construct was measured by perceived stress, depression, loneliness, and neuroticism; and processing speed was assessed by the Digit Symbol Substitution Test. Structural equation modelling was used to analyze the mediation and moderation tests. Results: Processing speed was found to partially mediate the relationship between psychosocial stress and global cognition (β in the direct model = −0.15, P < 0.001; β in the full mediation model = −0.11, P < 0.001). Moreover, the relationship between psychosocial stress and global cognition was found to be significant in men only, whereas the association between processing speed and global cognition was significant in men and women. Conclusions: Psychosocial stress may increase the likelihood that older adults will experience poor processing capacity, which could reduce their higher level cognition. Results indicate that there is a need to develop processing capacity intervention programmes for psychologically distressed older adults to prevent them from suffering cognitive decline.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Design Participants and Proceduresmentioning

confidence: 99%