Introduction: Frailty is a geriatric syndrome that is highly susceptible to adverse health outcomes and is a major burden that exacerbates society's medical care. By investigating the frailty trajectory within the older demographic and initially recognizing its clinical outcomes, we will have more tactics to manage the at-risk population.
Methods: We executed a systematic review of trajectory studies elucidating the connection between frailty and adverse outcomes among older individuals (≥ 65 years) and explored articles published in English and Chinese from the inception of the database until Jun 30, 2024, in PubMed, Web of Science, Embase, The Cochrane Library, CINAHL, Scopus, CNKI, China Online Journals, VIP Information, and SinoMed.
Results: The database survey unearthed 3522 articles, of which 21 were deemed eligible. The majority incorporated distinct assessment tools and statistical methodologies to classify frailty trajectories into three groups. Although these frailty trajectories produced inconsistent clinical outcomes, they did reveal trends in the frailty status of older adults.
Conclusion: The link between frailty trajectories and adverse outcome is a multifaceted and complex process that is currently understudied. More comprehensive and in-depth longitudinal studies should be conducted to explore the mechanism of interaction between the two to obstruct the progression of the frailty trajectory and bolster support for interventions.
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