title: [Longitudinal study on the body mass index (BMI) of dialysis patients].
abstract: Chronic renal failure is commonly related to hyponutrition, affecting approximately on third of patients with advanced renal failure. We carried out a longitudinal study to assess nutritional evolution of 73 patients on a regular hemodialysis program, assessing changes in the anthropometrical parameter body mass index (BMI) and its correspondence to biochemical nutritional parameters such as total protein (TP) levels and serum albumin (Alb). Every three months plasma TP and albumin levels were collected and BMI was calculated by the standard formula: post-dialysis weight in kg/height in m2. For classifying by BMI categories, overweight and low weight were defined according to the WHO Expert Committee. Studied patients had a mean age of 53 years, 43 were male and 30 were female patients. BMI in women was lower than that in men (p < 0.001), as well as TP (p < 0.001) and Alb (p < 0.001) levels. Mean BMI was 29.3 kg/m2. Three point two percent of the determinations showed low weight, 12.16% overweight, and 83.97% normal BMI. TP were normal in 90.76% and decreased in 9.24%. Alb was normal in 82.2% and low in 17.78%. After the follow-up time (21.6 months, minimum 18 months, maximum 53 months), the Kruskal-Wallis test did not show a statistically significant change for BMI but it did show a change for the biochemical parameters albumin and total proteins (p < 0.05): nutritional impairment in CRF patients is manifested on biochemical parameters (TP and Alb) with no reflection on anthropometrical data.
authors.affiliation: Servicio de Nefrología, Ciudad Sanitaria Virgen de las Nieves, Granada. magdalena@hispacolem.com
authors.forename: M
authors.initials: M
authors.lastname: Palomares Bayo
authors.forename: J J
authors.initials: JJ
authors.lastname: Quesada Granados
authors.forename: A
authors.initials: A
authors.lastname: Osuna Ortega
authors.forename: C
authors.initials: C
authors.lastname: Asensio Peinado
authors.forename: M J
authors.initials: MJ
authors.lastname: Oliveras López
authors.forename: H
authors.initials: H
authors.lastname: López G de la Serrana
authors.forename: M C
authors.initials: MC
authors.lastname: López Martínez
mesh_terms: D000328:Adult; D015992:Body Mass Index; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000628:therapy; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D006435:Renal Dialysis / Q000379:methods; D012709:Serum Albumin / Q000032:analysis
chemical_list: D012709:Serum Albumin