Longitudinal trajectories of disability index and associated factors in Chinese older adults
Background: As the global population ages, understanding the trajectories of disability in older adults is crucial for improving health outcomes and quality of life. This study aimed to identify patterns of disability index trajectories and associated factors influencing these trajectories in older...
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Elsevier
2025-05-01
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| Series: | The Journal of Nutrition, Health and Aging |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1279770725000533 |
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| author | Huaxin Si Yemin Yuan Zhenyu Shi Yanshang Wang Ping He |
| author_facet | Huaxin Si Yemin Yuan Zhenyu Shi Yanshang Wang Ping He |
| author_sort | Huaxin Si |
| collection | DOAJ |
| description | Background: As the global population ages, understanding the trajectories of disability in older adults is crucial for improving health outcomes and quality of life. This study aimed to identify patterns of disability index trajectories and associated factors influencing these trajectories in older adults. Methods: A total of 3,227 older adults aged 60 years and older were recruited from four waves of the China Health and Retirement Longitudinal Study (CHARLS, 2011–2018). We used group-based trajectory model to jointly estimate trajectories of disability index and attrition probability, while assessing baseline factors associated with the trajectory membership. Results: Our findings revealed four distinct trajectories of disability index: slightly limited-gradual deterioration (n = 1661, 51.5%), fluctuating change (n = 588, 18.2%), slightly limited-substantial deterioration (n = 397, 12.3%), and stable severely limited (n = 581, 18.0%). Women, unmarried, lower educational level, living in rural areas, no pension, comorbidity, poor self-rated health, a history of falls, short sleep duration, inadequate social activity, weakness, slowness, and poor chair standing were significantly associated with a higher probability of being in poorer disability index trajectories. Conclusions: This study highlights the heterogeneity of disability index trajectories in older adults and the multifaceted factors that influence them. Our findings underscore the importance of targeting early prevention or intervention based on the determinants of these trajectories to individual needs to maintain or delay the rate of deterioration of disability in older adults. |
| format | Article |
| id | doaj-art-fdccc4ce649b456f8b6f09e297226a0e |
| institution | Kabale University |
| issn | 1760-4788 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | The Journal of Nutrition, Health and Aging |
| spelling | doaj-art-fdccc4ce649b456f8b6f09e297226a0e2025-08-20T03:52:04ZengElsevierThe Journal of Nutrition, Health and Aging1760-47882025-05-0129510053010.1016/j.jnha.2025.100530Longitudinal trajectories of disability index and associated factors in Chinese older adultsHuaxin Si0Yemin Yuan1Zhenyu Shi2Yanshang Wang3Ping He4School of Public Health, Peking University, No. 38 Xueyuan Road, Haidian District, Beijing 100191, China; China Center for Health Development Studies, Peking University, No. 38 Xueyuan Road, Haidian District, Beijing 100191, ChinaSchool of Public Health, Peking University, No. 38 Xueyuan Road, Haidian District, Beijing 100191, China; China Center for Health Development Studies, Peking University, No. 38 Xueyuan Road, Haidian District, Beijing 100191, ChinaSchool of Public Health, Peking University, No. 38 Xueyuan Road, Haidian District, Beijing 100191, China; China Center for Health Development Studies, Peking University, No. 38 Xueyuan Road, Haidian District, Beijing 100191, ChinaSchool of Public Health, Peking University, No. 38 Xueyuan Road, Haidian District, Beijing 100191, China; China Center for Health Development Studies, Peking University, No. 38 Xueyuan Road, Haidian District, Beijing 100191, ChinaChina Center for Health Development Studies, Peking University, No. 38 Xueyuan Road, Haidian District, Beijing 100191, China; Corresponding author.Background: As the global population ages, understanding the trajectories of disability in older adults is crucial for improving health outcomes and quality of life. This study aimed to identify patterns of disability index trajectories and associated factors influencing these trajectories in older adults. Methods: A total of 3,227 older adults aged 60 years and older were recruited from four waves of the China Health and Retirement Longitudinal Study (CHARLS, 2011–2018). We used group-based trajectory model to jointly estimate trajectories of disability index and attrition probability, while assessing baseline factors associated with the trajectory membership. Results: Our findings revealed four distinct trajectories of disability index: slightly limited-gradual deterioration (n = 1661, 51.5%), fluctuating change (n = 588, 18.2%), slightly limited-substantial deterioration (n = 397, 12.3%), and stable severely limited (n = 581, 18.0%). Women, unmarried, lower educational level, living in rural areas, no pension, comorbidity, poor self-rated health, a history of falls, short sleep duration, inadequate social activity, weakness, slowness, and poor chair standing were significantly associated with a higher probability of being in poorer disability index trajectories. Conclusions: This study highlights the heterogeneity of disability index trajectories in older adults and the multifaceted factors that influence them. Our findings underscore the importance of targeting early prevention or intervention based on the determinants of these trajectories to individual needs to maintain or delay the rate of deterioration of disability in older adults.http://www.sciencedirect.com/science/article/pii/S1279770725000533Disability indexTrajectoriesProspective cohort studyGroup-based trajectory model |
| spellingShingle | Huaxin Si Yemin Yuan Zhenyu Shi Yanshang Wang Ping He Longitudinal trajectories of disability index and associated factors in Chinese older adults The Journal of Nutrition, Health and Aging Disability index Trajectories Prospective cohort study Group-based trajectory model |
| title | Longitudinal trajectories of disability index and associated factors in Chinese older adults |
| title_full | Longitudinal trajectories of disability index and associated factors in Chinese older adults |
| title_fullStr | Longitudinal trajectories of disability index and associated factors in Chinese older adults |
| title_full_unstemmed | Longitudinal trajectories of disability index and associated factors in Chinese older adults |
| title_short | Longitudinal trajectories of disability index and associated factors in Chinese older adults |
| title_sort | longitudinal trajectories of disability index and associated factors in chinese older adults |
| topic | Disability index Trajectories Prospective cohort study Group-based trajectory model |
| url | http://www.sciencedirect.com/science/article/pii/S1279770725000533 |
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