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Gaceta médica de México

versión On-line ISSN 2696-1288versión impresa ISSN 0016-3813


TOPETE-REYES, Jorge F. et al. Determinación del estado nutricional mediante el ángulo de fase en pacientes en hemodiálisis. Gac. Méd. Méx [online]. 2019, vol.155, n.3, 04.  Epub 01-Jul-2021. ISSN 2696-1288.


Multi-frequency bio-impedance analysis (BIA) accurately evaluates body composition.


To assess nutritional status and its relationship with body mass index (BMI) or with BIA-obtained phase angle in patients with end-stage renal disease (ESRD) on hemodialysis.


BMI, BIA and dialysis malnutrition score (DMS) were assessed in 99 patients on hemodialysis (43.6 ± 17.2 years of age, 58.8% males). Multivariate linear regression analysis was used to determine BMI and phase angle independent associations with DMS.


Malnutrition risk (DMS > 13) showed a gradual increase among patients with normal BMI and phase angle (44.4%), low BMI (45.8%), low phase angle (64.0%), and in those with both parameters at abnormal ranges (68.0%). The phase angle was the only variable that was independently associated with patient nutritional status (standardized coefficient beta −0.372, p < 0.001), accounting for 13.8% of DMS variation.


Phase angle is inversely and independently associated with malnutrition risk in patients with ESRD, which suggests that BIA-assessed body composition might be better than BMI in the clinical assessment of patients with ESRD.

Palabras llave : Body mass index; Phase angle; Bio-impedance; Subjective global assessment; Nutritional status.

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