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. 2022 Jan-Mar;18(1):58-63.
doi: 10.4183/aeb.2022.58.

ABDOMINAL SUBCUTANEOUS FAT THICKNESS MEASURED BY ULTRASOUND AS A PREDICTOR OF TOTAL FAT MASS IN YOUNG- AND MIDDLE-AGED ADULTS

Ş Ş Torgutalp  1 , F Korkusuz  1
Affiliations

ABDOMINAL SUBCUTANEOUS FAT THICKNESS MEASURED BY ULTRASOUND AS A PREDICTOR OF TOTAL FAT MASS IN YOUNG- AND MIDDLE-AGED ADULTS

Ş Ş Torgutalp et al. Acta Endocrinol (Buchar). 2022 Jan-Mar.

Abstract

Context: Predictive equations estimate total fat mass obtained from multiple-site ultrasound measurements; however, the predictive equation of total fat mass has not been investigated solely from abdominal subcutaneous fat thickness.

Objective: To develop regression-based prediction equations using abdominal subcutaneous fat thickness for predicting fat mass, and to explore the validity of these predictive equations.

Design: Cross-sectional study.

Subjects and methods: Twenty-seven males and eighteen females were randomly divided into two groups as the model prediction and the validation. Total body fat mass was determined by dual-energy X-ray absorptiometry. The linear regression analysis was used to predict equations for total body fat mass from abdominal subcutaneous fat thickness acquired by ultrasound. Then, these predictive equations were tested on the validation group. Lin's concordance correlation coefficient (CCC) was used as a further measure of agreement.

Results: When fat mass prediction equations were tested on the validation groups, measured- and estimated-total fat masses in males (p=0.9) and females (p=0.5) were found similar. A good level of agreement between measurements in males (CCC=0.84) and females (CCC=0.76) was attained.

Conclusion: The abdominal subcutaneous fat thickness obtained from a single region by ultrasound might provide a non-invasive and quick evaluation.

Keywords: anthropometry; body composition; concordance correlation coefficient; dual-energy X-ray absorptiometry.

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Conflict of interest statement

The authors declare that they have no conflict of interest.

Figures

Figure 1
Figure 1
Relationship between dual-energy X-ray absorptiometry-measured total fat mass and ultrasound-measured abdominal subcutaneous fat thickness x height in males and females.
Figure 2
Figure 2
Bland-Altman analysis results for the validation groups. A. For males. B. For females. The mid-dotted line shows the average of the differences. The upper and lower dotted lines show 2 standard deviations above and below the mean.
See this image and copyright information in PMC

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