Correction of body-mass index using body-shape perception and socioeconomic status in adolescent self-report surveys.

<h4>Objectives</h4>To propose a simple correction of body-mass index (BMI) based on self-reported weight and height (reported BMI) using gender, body shape perception and socioeconomic status in an adolescent population.<h4>Methods</h4>341 boys and girls aged 17-18 years were...

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Autores principales:	Stéphane Legleye, François Beck, Stanislas Spilka, Nearkasen Chau
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ae99f59714894f48baac12cde32163c4
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spelling	oai:doaj.org-article:ae99f59714894f48baac12cde32163c42021-11-18T08:18:41ZCorrection of body-mass index using body-shape perception and socioeconomic status in adolescent self-report surveys.1932-620310.1371/journal.pone.0096768https://doaj.org/article/ae99f59714894f48baac12cde32163c42014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24844229/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Objectives</h4>To propose a simple correction of body-mass index (BMI) based on self-reported weight and height (reported BMI) using gender, body shape perception and socioeconomic status in an adolescent population.<h4>Methods</h4>341 boys and girls aged 17-18 years were randomly selected from a representative sample of 2165 French adolescents living in Paris surveyed in 2010. After an anonymous self-administered pen-and-paper questionnaire asking for height, weight, body shape perception (feeling too thin, about the right weight or too fat) and socioeconomic status, subjects were measured and weighed. BMI categories were computed according to Cole's cut-offs. Reported BMIs were corrected using linear regressions and ROC analyses and checked with cross-validation and multiple imputations to handle missing values. Agreement between actual and corrected BMI values was estimated with Kappa indexes and Intraclass correlation coefficients (ICC).<h4>Results</h4>On average, BMIs were underreported, especially among girls. Kappa indexes between actual and reported BMI were low, especially for girls: 0.56 95%CI = [0.42-0.70] for boys and 0.45 95%CI = [0.30-0.60] for girls. The regression of reported BMI by gender and body shape perception gave the most balanced results for both genders: the Kappa and ICC obtained were 0.63 95%CI = [0.50-0.76] and 0.67, 95%CI = [0.58-0.74] for boys; 0.65 95%CI = [0.52-0.78] and 0.74, 95%CI = [0.66-0.81] for girls. The regression of reported BMI by gender and socioeconomic status led to similar corrections while the ROC analyses were inaccurate.<h4>Conclusions</h4>Using body shape perception, or socioeconomic status and gender is a promising way of correcting BMI in self-administered questionnaires, especially for girls.Stéphane LegleyeFrançois BeckStanislas SpilkaNearkasen ChauPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 5, p e96768 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Stéphane Legleye François Beck Stanislas Spilka Nearkasen Chau Correction of body-mass index using body-shape perception and socioeconomic status in adolescent self-report surveys.
description	<h4>Objectives</h4>To propose a simple correction of body-mass index (BMI) based on self-reported weight and height (reported BMI) using gender, body shape perception and socioeconomic status in an adolescent population.<h4>Methods</h4>341 boys and girls aged 17-18 years were randomly selected from a representative sample of 2165 French adolescents living in Paris surveyed in 2010. After an anonymous self-administered pen-and-paper questionnaire asking for height, weight, body shape perception (feeling too thin, about the right weight or too fat) and socioeconomic status, subjects were measured and weighed. BMI categories were computed according to Cole's cut-offs. Reported BMIs were corrected using linear regressions and ROC analyses and checked with cross-validation and multiple imputations to handle missing values. Agreement between actual and corrected BMI values was estimated with Kappa indexes and Intraclass correlation coefficients (ICC).<h4>Results</h4>On average, BMIs were underreported, especially among girls. Kappa indexes between actual and reported BMI were low, especially for girls: 0.56 95%CI = [0.42-0.70] for boys and 0.45 95%CI = [0.30-0.60] for girls. The regression of reported BMI by gender and body shape perception gave the most balanced results for both genders: the Kappa and ICC obtained were 0.63 95%CI = [0.50-0.76] and 0.67, 95%CI = [0.58-0.74] for boys; 0.65 95%CI = [0.52-0.78] and 0.74, 95%CI = [0.66-0.81] for girls. The regression of reported BMI by gender and socioeconomic status led to similar corrections while the ROC analyses were inaccurate.<h4>Conclusions</h4>Using body shape perception, or socioeconomic status and gender is a promising way of correcting BMI in self-administered questionnaires, especially for girls.
format	article
author	Stéphane Legleye François Beck Stanislas Spilka Nearkasen Chau
author_facet	Stéphane Legleye François Beck Stanislas Spilka Nearkasen Chau
author_sort	Stéphane Legleye
title	Correction of body-mass index using body-shape perception and socioeconomic status in adolescent self-report surveys.
title_short	Correction of body-mass index using body-shape perception and socioeconomic status in adolescent self-report surveys.
title_full	Correction of body-mass index using body-shape perception and socioeconomic status in adolescent self-report surveys.
title_fullStr	Correction of body-mass index using body-shape perception and socioeconomic status in adolescent self-report surveys.
title_full_unstemmed	Correction of body-mass index using body-shape perception and socioeconomic status in adolescent self-report surveys.
title_sort	correction of body-mass index using body-shape perception and socioeconomic status in adolescent self-report surveys.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/ae99f59714894f48baac12cde32163c4
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Correction of body-mass index using body-shape perception and socioeconomic status in adolescent self-report surveys.

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