Performance of the "a body shape index" as a discriminator of obesity and sarcopenic obesity - ELSA-Brasil

The scope of this study was to determine the diagnostic performance of ABSI for obesity and sarcopenic obesity, compared to the results of bioimpedance analysis (BIA) and BMI, by sex and age group. It involved a cross-sectional study with 12,793 participants in the second round of ELSA-Brasil (Longi...

Full description

Saved in:
Bibliographic Details
Published in:Ciência & saude coletiva 2025-01, Vol.30 (1), p.e03162023
Main Authors: Silva, Jane Kellen, Aguiar, Odaleia Barbosa de, Diniz, Maria de Fátima Haueisen Sander, Braga, José Ueleres, Griep, Rosane Harter, Fonseca, Maria de Jesus Mendes da
Format: Article
Language:Portuguese
Subjects:
Adult
Age Factors
Aged
Anthropometry - methods
Body Mass Index
Brazil - epidemiology
Cross-Sectional Studies
Electric Impedance
Female
Humans
Longitudinal Studies
Male
Middle Aged
Obesity - complications
Obesity - epidemiology
Obesity - physiopathology
Sarcopenia - diagnosis
Sarcopenia - epidemiology
Sensitivity and Specificity
Sex Factors
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The scope of this study was to determine the diagnostic performance of ABSI for obesity and sarcopenic obesity, compared to the results of bioimpedance analysis (BIA) and BMI, by sex and age group. It involved a cross-sectional study with 12,793 participants in the second round of ELSA-Brasil (Longitudinal Study of Adult Health in Brazil), which obtained measurements of body fat percentage using BIA and anthropometry, verifying the performance of the diagnostic tests in order to compare the indices. The results showed that for obesity in men in all three age groups, the sensitivity was below 49%. Specificity ranged from 73% to 93%, with a higher percentage in the 65 to 79 age group. The same pattern was found for women, with sensitivity lower than 42%, and specificity ranged from 85% to 92%, and was higher in older women. With respect to sarcopenic obesity, the sensitivity and specificity among men in the three age groups were 72% was 99%, respectively. Among women, sensitivity was around 95% and specificity around 70% in all age groups. ABSI, compared to BIA, showed a reduced ability to identify obesity. However, it proved to be a good marker of sarcopenic obesity.
ISSN:1678-4561
1678-4561
DOI:10.1590/1413-81232025301.03162023