Observational analysis reveals that single aggregate scores overlook complex health deficit patterns in ageing cohorts, suggesting the value of frailty index subdimensions.
Frailty, a state of increased vulnerability to adverse health outcomes, has garnered significant attention in research and clinical practice. Existing constructs aggregate clinical features or health deficits into a single score. While simple and interpretable, this approach may overlook the complexity of frailty and not capture the full range of variation between individuals.
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Johnson et al. (2024) studied this question.
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