This prospective multicenter study aims at exploring the impact of infections on intra-hospital and 3-month changes in the frailty profile of older inpatients. To understand the complex pathways under the relationship between infections and frailty, this study will evaluate infection-related clinical and biochemical markers of systemic inflammation and genetics/epigenetics markers at ward admission. The interplay between clinical, functional, and genetics/epigenetics factors will be evaluated in a subgroup of patients by testing whether 3-month changes in frailty concur with changes in the genomic DNA markers. This study will help characterize the pathophysiological mechanisms of frailty and identify at-risk conditions that may accelerate its course.
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Change in frailty index from pre-admission to hospital discharge
Timeframe: From 14 days before admission to hospital discharge (up to 60 days)