RT info:eu-repo/semantics/article T1 Phase angle as a prognostic indicator of survival in institutionalized psychogeriatric patients A1 Barrera Ortega, Sara A1 Redondo del Río, María Paz A1 Carreño Enciso, Laura A1 Cruz Marcos, Sandra de la A1 Massia, María Noel A1 Mateo Silleras, Beatriz de K1 Bioelectrical impedance K1 Impedancia (Electricidad) K1 Phase angle K1 Dementia K1 Demencia K1 Schizophrenia K1 Esquizofrenia K1 Geriatric psychiatry K1 Psychiatry K1 Personas de edad - Cuidado e higiene K1 Personas de edad - Protección, asistencia, etc K1 Nutrition - Evaluation K1 Nutrición - Evaluación K1 Survival K1 Supervivencia K1 3211 Psiquiatría K1 3201.07 Geriatría K1 6108 Psicología de la Vejez K1 3206 Ciencias de la Nutrición AB Phase angle (PhA) has been evidenced to be a useful survival indicator and predictor of morbi-mortality in different pathologies, but not in psychogeriatric patients. The aim of this study was to evaluate the clinical utility of PhA as a prognostic indicator of survival in a group of institutionalized psychogeriatric patients. A survival study was conducted on 157 patients (46.5% dementia, 43.9% schizophrenia). Functional impairment stage, frailty, dependence, malnutrition (MNA), comorbidity, polypharmacy, BMI, and waist circumference were registered. Body composition was analyzed using a 50-kHz whole-body BIA; PhA was recorded. The association between mortality and standardized-PhA was evaluated through univariate and multivariate Cox regression models and ROC-curve. The risk of death decreased when Z-PhA, BMI, and MNA were higher. Mortality increases with age, frailty, and dependence. The risk of death was statistically significantly lower (56.5%) in patients with schizophrenia vs. dementia (89%). The Z-PhA cut-off point was −0.81 (Sensitivity:0.75; Specificity:0.60). Mortality risk was multiplied by 1.09 in subjects with a Z-PhA < −0.81, regardless of age, presence of dementia, and BMI. PhA presented a remarkable clinical utility as an independent indicator of survival in psychogeriatric patients. Moreover, it could be useful to detect disease-related malnutrition and to identify subjects eligible for an early clinical approach. PB MDPI SN 2072-6643 YR 2023 FD 2023 LK https://uvadoc.uva.es/handle/10324/64351 UL https://uvadoc.uva.es/handle/10324/64351 LA eng NO Nutrients, 2023, Vol. 15, Nº. 9, 2139 NO Producción Científica DS UVaDOC RD 14-oct-2024