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Concordance between dual indirect methods for assessing fat percentage

Hurtado B.

Hurtado B.

Clinical Department, University of CaldasManizales, Colombia
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B., Hurtado
, 
Colina E.

Colina E.

Department of Physical Action, University of CaldasManizales, Colombia
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E., Colina
 and 
Gonzalez-Correa C. H.

Gonzalez-Correa C. H.

Basic Sciences for Health Department, University of CaldasManizales, Colombia
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C. H., Gonzalez-Correa
  
Apr 04, 2024
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Published Online: Apr 04, 2024
Page range: 26 - 32
Received: Jan 25, 2024
DOI: https://doi.org/10.2478/joeb-2024-0004
Keywords
© 2024 Hurtado B. et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
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Figure 1.

Graph of concordance between % fat measured by anthropometry and % fat measured by bioimpedance in people from 18 to 38 years old. Lin's index. (0.855).
Graph of concordance between % fat measured by anthropometry and % fat measured by bioimpedance in people from 18 to 38 years old. Lin's index. (0.855).

Figure 2.

Concordance between % fat measured by anthropometry and % fat measured by bioimpedance in people older than 38 years. Lin's index. (0.597).
Concordance between % fat measured by anthropometry and % fat measured by bioimpedance in people older than 38 years. Lin's index. (0.597).

Figure 3.

Bland & Altman graph for agreement between % fat measured by anthropometry and bioimpedance for people aged 18–38 years.
Bland & Altman graph for agreement between % fat measured by anthropometry and bioimpedance for people aged 18–38 years.

Figure 4.

Bland & Altman plot for agreement between % fat measured by anthropometry and by bioimpedance over 38 years old.
Bland & Altman plot for agreement between % fat measured by anthropometry and by bioimpedance over 38 years old.

Quantitative variables by sex-age

Sex Age Nº BMI Fat % Ant Fat % Bio P value comparing A/B

18 to 38 18 24.6 (3.5) 34.4 (5.1) 30.1 (5.1) <0,0001
> 38 17 27.1 (4.1) 38.6 (5.1) 33.4 (5.5) <0,0001
P value by age females 0.056 0.021 0.070

18 to 38 6 23.4 (2.5) 19.1 (5.5) 17.8 (4.5) 0.225
> 38 11 27.5 (3.2) 29.5 (5.0) 23.0 (3.4) 0.002
P value by age males 0.018 0.001 0.016

Lin's coefficient of concordance

Variable Categories # Lin's coefficient Lower limit (95%) Upper limit (95%)
Age < 24 0.86 0.73 0.92
> 28 0.60 0.38 0.75
Sex ♀< 18 0.66 0.41 0.81
♀> 17 0.51 0.22 0.72
♂< 6 0.86 0.39 0.97
♂> 11 0.12 0.00 0.38
Physical activity level Sedentary < 12 0.81 0.56 0.93
Moderate < 3 0.95 0.64 0.99
High < 9 0.81 0.54 0.93
Sedentary > 18 0.64 0.39 0.81
Moderate > 5 0.82 0.14 0.97
High > 5 0.00 0.00 0.30
BMI Normal weight < 13 0.82 0.62 0.92
Overweight < 10 0.72 0.42 0.88
Obesity I < 1 - - -
Normal weight > 9 0.38 0.00 0.69
Overweight > 12 0.53 0.16 0.77
Obesity I > 7 0.73 0.29 0.92
Waist circumference Normal < 13 0.84 0.65 0.93
Abnormal < 11 0.71 0.37 0.88
Normal > 7 0.43 0.00 0.79
Abnormal > 21 0.53 0.28 0.72
Language:
English
Publication timeframe:
1 times per year
Journal Subjects:
Engineering, Bioengineering and Biomedical Engineering, Biomedical Electronics, Life Sciences, Biophysics, Medicine, Biomedical Engineering, Physics, Spectroscopy and Metrology
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