Decoding the Enigmatic Link Between Sensory Impairment and Organic Mental Disorders: Insights From Biological Aging and Social Support in a Population Cohort Study
Ce Liu MS , Li He MS , Ya Xiao MS , Hao Zhao MS , Zhaoru Yang MS , Huanhuan Wei MS , Huan Chen MS , Tong Liu PhD , Kai Zhang PhD , Bin Luo PhD
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引用次数: 0
Abstract
Objectives
The objective of this study was to investigate the association between sensory impairments and organic mental disorders. We also examined biological age acceleration as a potential mediator and social support as a potential moderator of this association.
Design
This was a longitudinal cohort study using Cox proportional hazards models with mediation and moderation analyses.
Setting and Participants
A total of 330,983 UK Biobank participants (mean age ± SD, 56.41 ± 8.09 years) were categorized into 4 groups: no sensory impairment (n = 60,636), hearing impairment (n = 22,297), visual impairment (n = 12,271), and dual-sensory impairment (n = 5757).
Methods
Sensory status was self-reported, biological age acceleration was assessed through 3 biomarkers (homeostasis disorder, Klemera-Doubal method biological age, and phenotypic age), and organic mental disorders were identified via International Classification of Diseases, 10th Edition codes (F00-F09) from national health registries. Survival analyses were adjusted for sociodemographic factors, lifestyle, and health status.
Results
Over a 13.85-year median follow-up, 9645 participants developed organic mental disorders. Dual-sensory impairment showed the strongest association [hazard ratio (HR), 1.54; 95% CI, 1.45-1.64], followed by visual (HR, 1.20; 95% CI, 1.12-1.28) and hearing impairment (HR, 1.12; 95% CI, 1.05-1.20). Biological age acceleration mediated 24.5% to 38.9% of these associations (strongest through Klemera-Doubal method biological age). Social support demonstrated significant moderating effects, particularly in dual-sensory impairment, where high social support reduced risk (HR, 1.34; 95% CI, 1.12-1.60) compared with low social support (HR, 4.76; 95% CI, 2.35-9.65).
Conclusions and Implications
Sensory impairments are associated with an increased risk of organic mental disorders, potentially partly mediated by accelerated biological aging, with social support demonstrating a significant moderating effect. The gradient of risk across impairment types and the substantial potential mediating effect of biological age acceleration are consistent with multiple pathways linking sensory and cognitive health. These findings indicate that comprehensive interventions targeting sensory health, biological aging, and social support may represent potential targets for interventions aimed at preventing cognitive disorders in aging populations.
期刊介绍:
JAMDA, the official journal of AMDA - The Society for Post-Acute and Long-Term Care Medicine, is a leading peer-reviewed publication that offers practical information and research geared towards healthcare professionals in the post-acute and long-term care fields. It is also a valuable resource for policy-makers, organizational leaders, educators, and advocates.
The journal provides essential information for various healthcare professionals such as medical directors, attending physicians, nurses, consultant pharmacists, geriatric psychiatrists, nurse practitioners, physician assistants, physical and occupational therapists, social workers, and others involved in providing, overseeing, and promoting quality