Development of a Computational Model to Predict Excess Body Fat in Adolescents through Low Cost Variables
Abstract
:1. Introduction
2. Materials and Methods
2.1. Construction of The Database
2.2. Sample Calculation
2.3. Data Collect
2.4. Predictor Variables
2.5. Statistical Model
2.6. Performance Analysis
2.7. Statistical Analysis
3. Results
4. Discussion
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Attribute | Abbreviation | Unit |
---|---|---|
Body Mass | BM | Kg |
Height | Ht | M |
Gender | - | - |
Age | - | years |
Arm Circumference | AC | cm |
Waist Circumference | WC | cm |
Calf Circumference | CC | cm |
Hip Circumference | HC | cm |
Variables | Normal BFP * (n = 233) | Elevated BFP * (n = 539) | All # (n = 772) |
---|---|---|---|
Ht (m) | 1.67 (1.59−1.75) | 1.62 (1.57−1.68) | 1.64±0.09 |
BM (kg) | 53.6 (45.7−61.5) | 56.9(50.1−64.3) | 57.18±11.67 |
Age (years) | 17 (15−17) | 16(15−17) | 15.66±1.72 |
HC (cm) | 86.5 (82−91) | 92 (86.5−97) | 90.31±8.6 |
WC (cm) | 66 (62−71) | 69 (65−75) | 69±8.4 |
AC (cm) | 23 (21−25.5) | 25 (23−28) | 24.9±3.90 |
CC (cm) | 32 (30−34.7) | 34 (31.5−36) | 33.2±3.9 |
BFP (%) | 15.7(12.7−19.8) | 33.7 (28.4−39.1) | 28.4±10.23 |
Gender§ | |||
Female | 99 | 402 | 501 |
Male | 134 | 137 | 271 |
Ethnicity§ | |||
Caucasian | 53 | 124 | 177 |
Non-Caucasian | 180 | 415 | 595 |
Attribute | Beta | p |
---|---|---|
Body Mass | −0.12 | 0.018 |
Height | −6.84 | 0.005 |
Gender | −11.5 | <0.001 |
Age | −1.32 | <0.001 |
Arm Circumference | 0.37 | 0.002 |
Waist Circumference | 0.31 | <0.001 |
Calf Circumference | 0.40 | 0.001 |
Hip Circumference | 0.30 | <0.001 |
Indicators | AUROC * (CI 95 %) | Accu (%) | Sens (%) | Spe (%) | TP (%) | TN (%) | FP (%) | FN (%) |
---|---|---|---|---|---|---|---|---|
MP | 0.80 (0.70–0.90) | 85.1 | 92 | 67.4 | 66 | 19 | 9 | 6 |
BMI | 0.64 (0.51–0.77) | 47.4 | 27 | 100 | 19 | 28 | 0 | 53 |
WHtR | 0.55 (0.36–0.74) | 35.1 | 9.9 | 100 | 7 | 28 | 0 | 65 |
(%) | Male | Female | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
10–14 (n = 13) | 15–19 (n = 44) | 10–14 (n = 17) | 15–19 (n = 80) | |||||||||
MP | BMI | WHtR | MP | BMI | WHtR | MP | BMI | WHtR | MP | BMI | WHtR | |
Accu | 84 | 46 | 46 | 82 | 73 | 64 | 76 | 53 | 23 | 89 | 32 | 20 |
Sens | 75 | 12 | 12 | 80 | 40 | 20 | 100 | 38 | 0 | 96 | 23 | 8 |
Spe | 100 | 100 | 100 | 83 | 100 | 100 | 0 | 100 | 100 | 40 | 100 | 100 |
TP | 46 | 8 | 8 | 36 | 18 | 9 | 76 | 29 | 0 | 84 | 20 | 7 |
TN | 39 | 39 | 39 | 46 | 55 | 55 | 0 | 24 | 24 | 5 | 13 | 13 |
FP | 0 | 0 | 0 | 9 | 0 | 0 | 24 | 0 | 0 | 7 | 0 | 0 |
FN | 15 | 53 | 53 | 9 | 27 | 36 | 0 | 47 | 76 | 4 | 67 | 80 |
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Sousa, C.M.; Santana, E.; Lopes, M.V.; Lima, G.; Azoubel, L.; Carneiro, É.; Barros, A.K.; Pires, N. Development of a Computational Model to Predict Excess Body Fat in Adolescents through Low Cost Variables. Int. J. Environ. Res. Public Health 2019, 16, 2962. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph16162962
Sousa CM, Santana E, Lopes MV, Lima G, Azoubel L, Carneiro É, Barros AK, Pires N. Development of a Computational Model to Predict Excess Body Fat in Adolescents through Low Cost Variables. International Journal of Environmental Research and Public Health. 2019; 16(16):2962. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph16162962
Chicago/Turabian StyleSousa, Carlos Magno, Ewaldo Santana, Marcus Vinicius Lopes, Guilherme Lima, Luana Azoubel, Érika Carneiro, Allan Kardec Barros, and Nilviane Pires. 2019. "Development of a Computational Model to Predict Excess Body Fat in Adolescents through Low Cost Variables" International Journal of Environmental Research and Public Health 16, no. 16: 2962. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph16162962