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Prevalence and correlates of cognitive impairment and depression among elderly people in the world’s fastest growing city, Chongqing, People’s Republic of China

Authors Giri M, Chen T, Yu W, Lü Y

Received 26 May 2016

Accepted for publication 21 June 2016

Published 12 August 2016 Volume 2016:11 Pages 1091—1098


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Dr Richard Walker

Video abstract presented by Mohan Giri.

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Mohan Giri,1,* Tian Chen,1,* Weihua Yu,2 Yang Lü1

1Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, 2Institutes of Neuroscience, Chongqing Medical University, Chongqing, People’s Republic of China

*These authors contributed equally to this work

Background: Cognitive impairment and depression are major mental health problems affecting older people. The current study was designed to explore the prevalence of cognitive impairment and depression in representative sample of elderly people aged ≥60 years and to examine the correlates of cognitive impairment and depression with other sociodemographic variables.
Methods: A cross-sectional study based on comprehensive geriatric assessment of 538 elderly Chinese people was conducted from September 2011 to August 2012. Cognitive impairment was assessed using the Chinese version of Mini-Mental State Examination, and depressive symptoms were assessed by 30-item geriatric depression scale.
Results: The prevalence of cognitive impairment was 12.6%. Multiple logistic regression analysis revealed that the following were significant independent predictors of cognitive impairment: female, having a low level of education, increasing age, and depression. The overall prevalence of depression was 24.3%, and in adjusted model, cognitive impairment was only associated with increased risk of depression.
Conclusion: Cognitive impairment and depression are prevalent in elderly Chinese people. Among a number of factors identified in our study, cognitive impairment and depression were highly correlated in elderly people aged ≥60 years.

Keywords: cognitive impairment, depression, elderly Chinese, prevalence, risk factors

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