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Nefrología (Madrid)

On-line version ISSN 1989-2284Print version ISSN 0211-6995


CASTELLANO, Sandra et al. Risk identification in haemodialysis patients by appropriate body composition assessment. Nefrología (Madr.) [online]. 2016, vol.36, n.3, pp.268-274. ISSN 1989-2284.


Circumstances such as gender, age, diabetes mellitus (DM) and renal failure impact on the body composition of patients. However, we use nutritional parameters such as lean and fat tissue with reference values from healthy subjects to assess the nutritional status of haemodialysis (HD) patients.


To analyse body composition by bioimpedance spectroscopy (BIS) of 6395 HD patients in order to obtain reference values of lean tissue index (LTI) and fat tissue index (FTI) from HD patients; and to confirm its validity by showing that those patients with LTI below the 10th percentile calculated for their group have greatest risk of death.

Material and methods:

We used the BIS to determine the LTI and FTI in our cohort of HD patients in Spain. We calculated the 10th percentile and 90th percentile of LTI and FTI in each age decile for patients grouped by gender and presence of DM. We collected clinical, laboratory and demographic parameters.


The LTI/FTI 10 and 90 percentile values varied by group (age, gender and presence of DM) and, after adjusting for other risk factors such as fluid overload, those patients with LTI lower than percentile 10 had a higher relative risk of death (OR 1.57) than those patients with higher values.


Monitoring the LTI and FTI of patients on HD using suitable reference values may help to identify risk in this patient population.

Keywords : Mortality; Risk; Haemodialysis; Lean tissue index; Fluid overload.

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