ArticleBMC public health2025
Disease clusters and death trajectories in individuals with frailty: a prospective cohort study from the UK Biobank.
Article in BMC public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundFrailty is common in older adults and significantly increases the risk of multiple medical conditions, yet the temporal progression and interaction of these diseases remain poorly understood. Analyzing disease trajectories alongside comorbidity networks provides a strategy for exploring the temporal patterns and system evolutionary features of diseases. In the current study, we evaluated baseline frailty and systematically identified main disease clusters and death trajectories in a frail population.
methodData from the UK Biobank, including 18,999 individuals classified as frail and 94,995 matched controls selected after propensity score matching, were evaluated. Diagnoses were reclassified into 385 medical conditions and 14 categories of death causes using PhecodeX. Disease trajectory and comorbidity network analyses were conducted to describe the patterns of disease development in the frail population.
resultsOver a median follow-up of 14.9 years, a phenome-wide association study using Cox regression analysis revealed that individuals with frailty had significantly higher risks for 147 medical conditions and 6 causes of death. Modeling disease pairs and trajectories in combination with comorbidity networks revealed three main disease clusters: musculoskeletal/psychiatric disorders, respiratory/multi-system diseases, and cardiovascular/metabolic diseases, with cardiovascular diseases central in mortality outcomes.
conclusionsIndividuals with frailty have a greater risk of experiencing various medical conditions and death. These risks often involve multiple interconnected trajectories, highlighting potential targets to prevent further deterioration in health.
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