SciELO - Scientific Electronic Library Online

 
vol.136 número4Presencia de metalo-ß-lactamasas en Pseudomonas aeruginosa resistente a imipenemPredictores de síndrome coronario agudo sin supradesnivel del ST y estratificación de riesgo en la unidad de dolor torácico. Experiencia en 1.168 pacientes índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Revista médica de Chile

versión impresa ISSN 0034-9887

Resumen

VELASQUEZ R, Marcia et al. Validation of equations to assess body composition using anthropometric data in Chilean preschool children. Rev. méd. Chile [online]. 2008, vol.136, n.4, pp. 433-441. ISSN 0034-9887.  http://dx.doi.org/10.4067/S0034-98872008000400003.

Background: Validated equations to measure body composition in Chilean preschool children are lacking, since the only international equation available was developed in obese, and undernourished Caucasian children. Due to the increase in overweight and obesity in Chile, it is essential to have simple and reliable instruments to assess children. Aim: To design and validate anthropometric equations to estimate body fat (BF) and total body water (TBW) to be applicable in children aged 3 to 5 years, using deuterated water dilution as a reference method. Materials and Methods: Weight, height, circumferences and skinfold thickness were evaluated in 238 children aged 3 to 5 years, attending Junta Nacional de Jardines Infantiles (JUNJI). Several equations were developed using multiple regression models to estimate body water and fat. The proposed equations were validated against a sample of 77 children previously evaluated, using Bland and Alunan agreement analysis, that compares average differences of both methods with the average of predicted and estimated values. Results: New equations for TBW and BF were obtained, accounting for 86% and 72% in estimated variability. The agreement analysis showed a mean difference 0.001 ± 0.32 and 0.07 ± 0.56 kg, for TBW and BF, respectively, confirming the validity of the equations. Conclusions: The new validated equations in Chilean children aged 3 to 5 years, have an adequate and predictive capacity, especially useful for evaluating TBW and BF change in cohorts

Palabras clave : Adipose tissue; Body composition; Body water; Child, preschool.

        · texto en Español     · pdf en Español