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June 21, 2026Journal of Eating DisordersOpen Access

Baseline phase angle is associated with morphofunctional status, length of stay, and hospitalization costs in severe anorexia nervosa: the EDIGRA study

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Authors

VSVíctor Siles-GuerreroHospital Universitario Virgen de las NievesRGRodrigo García-PérezHospital Universitario Virgen de las NievesMNMaría Novo-RodríguezInstituto de Investigación Biosanitaria de Granada

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Overview

Prospective cohort study explores phase angle impacts on morphofunctional status and hospitalization outcomes in severe anorexia nervosa.

Key Points

  • This study investigates the relationship between baseline phase angle and various health metrics in women with severe anorexia nervosa.
  • Prospective cohort study involving 42 female inpatients with severe anorexia nervosa or specified feeding disorders.
  • Assessment of body composition, hydration, muscle strength, and hospitalization costs through various measurements at admission.
  • Patients were stratified by phase angle tertiles to analyze differences in clinical outcomes.
  • Patients with higher phase angle exhibited greater muscle strength (handgrip strength 24.9 kg vs. 20.3 kg) and muscle size (rectus femoris area 3.7 cm² vs. 2.3 cm²).
  • Median length of stay decreased from 58.4 to 41.3 days, resulting in reduced hospitalization costs (€36,523 to €25,829).
  • ROC analysis indicated modest discrimination for prolonged hospitalization with an AUC of 0.65.

Cite This Study

Siles-Guerrero et al. (2026) studied this question.

synapsesocial.com/papers/6a3780b224f042ddf4c5abcahttps://doi.org/10.1186/s40337-026-01687-7
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Phase angle as a predictor of prolonged length of hospital stay and adverse outcomes in elderly medical inpatients: a retrospective cohort study2025
  2. 2Preoperative Phase Angle as a Marker of Nutritional and Functional Vulnerability in Patients Undergoing Colorectal Cancer Surgery: A Prospective Observational Cohort Study2026
  3. 3Phase angle as a predictor of nutritional status and quality of life in hemodialysis patients2026
  4. 4Association of Phase Angle with Body Composition in Hemodialysis Patients: A Case–Control Study2025
  5. 5Phase angle and rectus femoris cross-sectional area as predictors of severe malnutrition and their relationship with complications in outpatients with post-critical SARS-CoV2 disease2023 · 13 citations