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0390/2018 - Acurácia de pontos de corte para IMC e CC na predição de excesso de gordura corporal em idosos.

Author:

• Erika Aparecida da Silveira - Silveira, E.A. - <erikasil@terra.com.br>
ORCID: https://orcid.org/0000-0002-8839-4520

Co-author(s):

• Valéria Pagotto - Pagotto, V. - Goiânia, GO - <valeriapagotto@gmail.com>
ORCID: https://orcid.org/0000-0002-5590-2453
• Larissa Barbosa - Barbosa, L - <larissanutri@gmail.com>
ORCID: https://orcid.org/0000-0002-2564-6524
• Georgia das Graças Pena - Pena, Georgia das Graças - <georgiapena@gmail.com>
ORCID: https://orcid.org/0000-0002-0360-223X
• Jorge Gustavo Velasquez Melendez - Velasquez-Melendez, G - <guveme@ufmg.br, jguveme@gmail.com> +
ORCID: https://orcid.org/0000-0001-8349-5042


Abstract:

The objeticve was to analyze the vality and accuracy of the Body Mass Index (BMI) and Waist Circumference (WC) in evaluation of excess body fat and identifying cutoff points more adequate for the elderly. The recommended cut points for BMI (25, 27 or 30kg / m2) and WC (≥102cm men and ≥88cm women or ≥90cm men and ≥80cm women) were evaluated and compared to total body densitometry, being overweight when >90th percentile. From of 132 elderly studied, 60.6% were women and the age group of 60-91 years. The recommended cut-off points of IMC≥25kg/m2 and IMC≥27 kg/m2 presented similar performances, and IMC≥30 kg/m2 presented high specificity, but low sensitivity in males and better performance for body fat in women. Conventional WC cut-off points did not show good sensitivity and specificity. New cut-off points for BMI (male-25 kg/m2, female-26.6 kg/m2) and WC (male-98.8cm, female-77.8cm) were proposed. These values showed sensitivity and specificity >74% and accuracy >76%. The areas under the curve (ROC) were >0.86. The present study proposes more accurate cutoff points for the diagnosis of body fat in the elderlyBMI and WC (male- 25 kg/m2 and 98.8 cm and female- 26.6 kg/m2 and 77.8cm) the best levels of sensitivity and specificity presented.

Keywords:

Sensitivity and Specificity; Obesity; body composition; ageing.

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Silveira, E.A., Pagotto, V., Barbosa, L, Pena, Georgia das Graças, Velasquez-Melendez, G. Acurácia de pontos de corte para IMC e CC na predição de excesso de gordura corporal em idosos.. Cien Saude Colet [periódico na internet] (2018/Aug). [Citado em 21/01/2025]. Está disponível em: http://cienciaesaudecoletiva.com.br/en/articles/acuracia-de-pontos-de-corte-para-imc-e-cc-na-predicao-de-excesso-de-gordura-corporal-em-idosos/16923?id=16923



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