Bioelectrical Impedance Versus Biochemical Analysis of Hydration Status: Predictive Value for Prolonged Hospitalisation and Poor Discharge Destination for Older Patients

Dehydration is prevalent in hospitalised patients and associated with increased morbidity mortality, particularly among the elderly (≥65 years). We aimed at comparing performance of intracellular water to extracellular ratio (ICW/ECW), calculated through a bioelectrical impedance analysis (BIA) blood urea nitrogen, creatinine (BUN/Cr) predict poor outcomes cohort prospectively identified patients. Data were combined from years) admitted hospital fragility fracture (n = 125) older adults aged ≥50 years stroke 40). The association between hydration status study (unfavourable discharge destination (rehabilitation, another ward, or death) prolonged hospitalisation (>10 days)) was examined using logistic regression. overall diagnostic accuracy each measurement assessed area under receiver operating characteristic (ROC) curve. In 165 participants (mean age (SD) 76.7 (9.2) years), an ICW/ECW below 25th percentile odds (OR (95% CI) 4.25 (1.59–11.34)). Neither relationship BUN/Cr stay nor significant. A BIA could be used utilised conjunction biochemical measurements inform patient prognosis.