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Pu L, Pan D, Wang H, He X, Zhang X, Yu Z, Hu N, Du Y, He S, Liu X, Li J. A predictive model for the risk of cognitive impairment in community middle-aged and older adults. Asian J Psychiatr 2023; 79:103380. [PMID: 36495830 DOI: 10.1016/j.ajp.2022.103380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 11/21/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
Identifying individuals at high risk of cognitive impairment is essential for treatment and prevention strategies. We aimed to develop and validate a prediction model for evaluating the risk of cognitive impairment. Data were from the China Family Panel Studies (CFPS) and China Health and Retirement Longitudinal Study (CHARLS). A total of 14,265 subjects were selected for model development. The area under the curve(AUC) for the training, internal, and external validation sets were 0.775, 0.920, and 0.727, respectively. This model could be used to identify middle-aged and older adults aged 45 years and older at high risk of cognitive impairment.
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Affiliation(s)
- Lining Pu
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan 750004, China.
| | - Degong Pan
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan 750004, China.
| | - Huihui Wang
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan 750004, China.
| | - Xiaoxue He
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan 750004, China.
| | - Xue Zhang
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan 750004, China.
| | - Zhenfan Yu
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan 750004, China.
| | - Naifan Hu
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan 750004, China.
| | - Yurun Du
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan 750004, China.
| | - Shulan He
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan 750004, China.
| | - Xiaojuan Liu
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan 750004, China.
| | - Jiangping Li
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan 750004, China; Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, China.
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Kulimbet M, Glushkova N, Snitz B, Tsoy R, Adambekov S, Talbott E, Mereke A, Wu M, Zhumagaliuly A, Karaca F, Chang Y, Turuspekova S, Sekikawa A, Davletov K. Neuropsychological Assessment of Community-Dwelling Older Adults in Almaty, Kazakhstan. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:16189. [PMID: 36498262 PMCID: PMC9737569 DOI: 10.3390/ijerph192316189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/25/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
Cognitive impairment in older adults is a major public concern for Kazakhstan's aging population. We aimed to (1) administer a neuropsychological test battery (NTB) in domains relevant to aging-associated cognitive impairment in a sample of adults aged 60+ without dementia in Almaty, Kazakhstan; (2) investigate the associations between demographic factors and test performance; and (3) provide information on the distribution of NTB scores as preliminary local normative data relevant for this population. A cross-sectional evaluation of 276 participants aged 60+ in Almaty, Kazakhstan, was conducted using cognitive instruments including tests of memory, attention, language, executive functions, visuospatial abilities, and processing speed. Multiple linear regression analyses were used to examine the association of demographic factors with neuropsychological test performance. The results from the regression analysis showed that those who are younger, have more years of education, are women, and are of Russian ethnicity had significantly better performance. The current study illustrated (1) the feasibility of administering the NTB to older adults in the general population in Kazakhstan; (2) the preliminary local normative neuropsychological measures; and (3) their independent associations with age, education, gender, and ethnicity. The findings are a platform for future research on dementia and cognitive impairment in older adults in Kazakhstan.
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Affiliation(s)
- Mukhtar Kulimbet
- Department of Epidemiology, Biostatistics and Evidence-Based Medicine, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
- Health Research Center, Asfendiyarov Kazakh National Medical University, Almaty 050000, Kazakhstan
| | - Natalya Glushkova
- Department of Epidemiology, Biostatistics and Evidence-Based Medicine, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
- Health Research Center, Asfendiyarov Kazakh National Medical University, Almaty 050000, Kazakhstan
| | - Beth Snitz
- Department of Neurology, University of Pittsburgh, Pittsburgh, PA 15237, USA
| | - Radmila Tsoy
- Department of Nervous Diseases, Asfendiyarov Kazakh National Medical University, Almaty 050000, Kazakhstan
| | - Shalkar Adambekov
- Department of Epidemiology, Biostatistics and Evidence-Based Medicine, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
| | - Evelyn Talbott
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Alibek Mereke
- Department of Epidemiology, Biostatistics and Evidence-Based Medicine, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
| | - Minjie Wu
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Abzal Zhumagaliuly
- Public Health Department, Asfendiyarov Kazakh National Medical University, Almaty 050040, Kazakhstan
| | - Ferhat Karaca
- Department of Civil and Environmental Engineering, The Environment & Resource Efficiency Cluster, School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan
| | - Yuefang Chang
- Department of Neurosurgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Saule Turuspekova
- Department of Nervous Diseases, Asfendiyarov Kazakh National Medical University, Almaty 050000, Kazakhstan
| | - Akira Sekikawa
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Kairat Davletov
- Health Research Center, Asfendiyarov Kazakh National Medical University, Almaty 050000, Kazakhstan
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Yu J, Rawtaer I, Fam J, Feng L, Kua EH, Mahendran R. The individualized prediction of cognitive test scores in mild cognitive impairment using structural and functional connectivity features. Neuroimage 2020; 223:117310. [PMID: 32861786 DOI: 10.1016/j.neuroimage.2020.117310] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/31/2020] [Accepted: 08/20/2020] [Indexed: 11/16/2022] Open
Abstract
Neuropsychological assessments are essential in diagnosing age-related neurocognitive disorders. However, they are lengthy in duration and can be unreliable at times. To this end, we explored a modified connectome-based predictive modeling approach to estimating individualized scores from multiple cognitive domains using structural connectivity (SC) and functional connectivity (FC) features. Multi-shell HARDI and resting-state functional magnetic resonance imaging scans, and scores from 10 cognitive measures were acquired from 91 older adults with mild cognitive impairment. SC and FC matrices were derived from these scans and, in various combinations, entered into models along with demographic covariates to predict cognitive scores. Leave-one-out cross-validation was performed. Predictive accuracy was assessed via the correlation between predicted and observed scores (rpredicted-observed). Across all cognitive measures, significant rpredicted-observed (0.402 to 0.654) were observed from the best-predicting models. Six of these models consisted of multimodal features. For three cognitive measures, their best-predicting models' rpredicted-observed were similar to that of a model that included only demographic covariates- suggesting that SC and/or FC features did not contribute significantly on top of demographics. Cross-prediction models revealed that the best-predicting models were similarly accurate in predicting scores of related cognitive measures- suggesting their limited specificity in predicting cognitive scores. Generally, multimodal connectomes together with demographics, can be exploited as sensitive markers, though with limited specificity, to predict cognitive performance across a spectrum in multiple cognitive domains. In certain situations, it may not be worthwhile to acquire neuroimaging data, considering that demographics alone can be similarly accurate in predicting cognitive scores.
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Affiliation(s)
- Junhong Yu
- Department of Psychological Medicine, Mind Science Centre, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597, Singapore.
| | - Iris Rawtaer
- Department of Psychological Medicine, Sengkang General Hospital, 110 Sengkang E way, Singapore 544886, Singapore
| | - Johnson Fam
- Department of Psychological Medicine, Mind Science Centre, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597, Singapore
| | - Lei Feng
- Department of Psychological Medicine, Mind Science Centre, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597, Singapore
| | - Ee-Heok Kua
- Department of Psychological Medicine, Mind Science Centre, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597, Singapore
| | - Rathi Mahendran
- Department of Psychological Medicine, Mind Science Centre, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597, Singapore; Academic Development Department, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore.
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