Is BMI a valid indicator of overweight and obesity for adolescents?
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15510%2F20%3A73601175" target="_blank" >RIV/61989592:15510/20:73601175 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1660-4601/17/13/4815/htm" target="_blank" >https://www.mdpi.com/1660-4601/17/13/4815/htm</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ijerph17134815" target="_blank" >10.3390/ijerph17134815</a>
Alternative languages
Result language
angličtina
Original language name
Is BMI a valid indicator of overweight and obesity for adolescents?
Original language description
Background: Overweight and obesity are mostly monitored via the Body Mass Index (BMI), based on self-reported or measured height and weight. Previous studies have shown that BMI as a measure of obesity can introduce important misclassification problems. The aim of this study was to assess the validity of overweight and obesity classification based on self-reported and on measured height and weight versus the proportion of body fat as the criterion. Methods: We used data on 782 adolescents (mean age = 13.5, 55.8% boys) from the Health Behaviour in School-Aged Children (HBSC) study conducted in 2018 in Slovakia. We obtained self-reported (height and weight) and objective measures (height, weight) and the proportion of fat (as the criterion measure) measured via bioimpedance body composition analysis (BIA) with an InBody 230 from the adolescents. Results: Both measured and self-reported BMI indicated overweight and obesity with relatively low sensitivity (66–82%), but high specificity (90–92%). The superior accuracy of measured BMI in comparison to self-reported BMI was confirmed by the area under the curve (AUC) based on the receiver operating characteristics (ROC) curves (AUC measured/self-reported: 0.94/0.89; p < 0.001). The misclassification of overweight and obesity was significantly higher when using self-reported BMI than when using measured BMI. Conclusion: Both self-reported and measured BMI as indicators of overweight and obesity underestimate the prevalence of adolescents with overweight and obesity.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
30306 - Sport and fitness sciences
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Environmental Research and Public Health
ISSN
1661-7827
e-ISSN
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Volume of the periodical
17
Issue of the periodical within the volume
13
Country of publishing house
CH - SWITZERLAND
Number of pages
10
Pages from-to
1-10
UT code for WoS article
000550297100001
EID of the result in the Scopus database
2-s2.0-85087401043