Fuzzy obesity index (MAFOI) for obesity evaluation and bariatric surgery indication

Autor(es)

Miyahira, Susana Abe ^{[1, 2, 3]} ; Moreira Coutinho de Azevedo, Joao Luiz ^[1] ; Araujo, Ernesto ^{[1, 2, 3]}

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Paulo UNIFESP, BR-04023900 Sao Paulo - Brazil

^[2] Hosp Municipal Dr Jose de Carvalho Florence HMJCF, BR-12220280 Sao Jose Dos Campos - Brazil

^[3] Associacao Paulista Desenvolvimento Med SPDM, BR-12220280 Sao Jose Dos Campos - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF TRANSLATIONAL MEDICINE; v. 9, AUG 14 2011.
• Citações Web of Science: 0

Resumo

Background: The Miyahira-Araujo Fuzzy Obesity Index (MAFOI) for being used as an alternative in bariatric surgery indication (BSI) is validated in this paper. The search for a more accurate method to evaluate obesity and to indicate a better treatment is important in the world health context. Body mass index (BMI) is considered the main criteria for obesity treatment and BSI. Nevertheless, the fat excess related to the percentage of Body Fat (%BF) is actually the principal harmful factor in obesity disease that is usually neglected. The aim of this research is to validate a previous fuzzy mechanism by associating BMI with %BF that yields the Miyahira-Araujo Fuzzy Obesity Index (MAFOI) for obesity evaluation, classification, analysis, treatment, as well for better indication of surgical treatment. Methods: Seventy-two patients were evaluated for both BMI and %BF. The BMI and %BF classes are aggregated yielding a new index (MAFOI). The input linguistic variables are the BMI and %BF, and the output linguistic variable is employed an obesity classification with entirely new types of obesity in the fuzzy context, being used for BSI, as well. Results: There is gradual and smooth obesity classification and BSI criteria when using the Miyahira-Araujo Fuzzy Obesity Index (MAFOI), mainly if compared to BMI or %BF alone for dealing with obesity assessment, analysis, and treatment. Conclusion: The resulting fuzzy decision support system (MAFOI) becomes a feasible alternative for obesity classification and bariatric surgery indication. (AU)

• Processo FAPESP: 09/07956-7 - Sistema de suporte à decisão baseado na lógica fuzzy para indicação de cirurgia bariátrica: índice de massa corporal versus gordura corporal avaliada por impedância bioelétrica
• Beneficiário: Joao Luiz Moreira Coutinho de Azevedo
• Modalidade de apoio: Auxílio à Pesquisa - Regular