Background: Nutrition markers may be useful for diagnosis and monitoring and, also, as additional indicators of estimating death risk. We tested the association of body composition indicators (mid–upper arm circumference and phase angle) with pediatric intensive care unit (PICU) length of stay and mortality in critically ill pediatric patients. Methods: Data from children aged 2 months–18 years were collected, and bioelectrical impedance was performed to obtain phase angle. Severity was evaluated by scoring the Pediatric Index of Mortality. Descriptive statistics were reported for nominal variables. Receiver operating characteristic curve was used to analyze the association of phase angle with 30-day mortality and to find the best cutoff. Survival probabilities and PICU length of stay were estimated using the Kaplan-Meier method. Results: We evaluated 247 children with a median age of 4.8 years whose main cause of admission was sepsis. Survival curves showed higher survival in patients with phase angle >2.8° compared with patients with phase angle ≤2.8° (P
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Zamberlan, P., Feferbaum, R., Doria Filho, U., Brunow de Carvalho, W., & Figueiredo Delgado, A. (2019). Bioelectrical Impedance Phase Angle and Morbidity and Mortality in Critically Ill Children. Nutrition in Clinical Practice, 34(1), 163–171. https://doi.org/10.1002/ncp.10201