Body mass index: sensitivity and specificity.

Detalhes bibliográficos
Autor(a) principal: Clemente, Linda
Data de Publicação: 2004
Outros Autores: Moreira, Pedro, Oliveira, Bruno, Almeida, Maria Daniel Vaz de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/1113
Resumo: Self-reported height and weight data have been used in several studies with the purpose of determining the prevalence of overweight and obesity. Despite being a simple methodology, little information exists about the reliability of these measures, namely, in university students. The objective of this study was to determine the sensitivity and specificity of self-reported body mass index (BMI) to evaluate the prevalence of overweight and obesity in university students.In a convenience sample of 380 university students (226 women and 154 men), weight and height were obtained by self-reported measures and anthropometric assessment according to international standards methodology (objective). BMI was calculated from self-reported and direct measures.The discrepancy between objective and self-reported weight was not significative. For height, this discrepancy was significantly different in women, in men, and between genders. The difference between BMI values was significantly different in women (0.8 +/- 1.1 kg/m2), in men (0.4 +/- 1.1 kg/m2) and between genders. Concerning overweight and obesity, according to the objective BMI, the sensitivity was only 50% in women, and 70% in men, while the specificity was 99% in women and 98% in men.Our results show a poor sensitivity of self-reported weight and height data, to estimate overweight and obesity, thus, this method might not be reliable for studies of prevalence of obesity in this population.
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spelling Body mass index: sensitivity and specificity.Indice de massa corporal: sensibilidade e especificidade.Self-reported height and weight data have been used in several studies with the purpose of determining the prevalence of overweight and obesity. Despite being a simple methodology, little information exists about the reliability of these measures, namely, in university students. The objective of this study was to determine the sensitivity and specificity of self-reported body mass index (BMI) to evaluate the prevalence of overweight and obesity in university students.In a convenience sample of 380 university students (226 women and 154 men), weight and height were obtained by self-reported measures and anthropometric assessment according to international standards methodology (objective). BMI was calculated from self-reported and direct measures.The discrepancy between objective and self-reported weight was not significative. For height, this discrepancy was significantly different in women, in men, and between genders. The difference between BMI values was significantly different in women (0.8 +/- 1.1 kg/m2), in men (0.4 +/- 1.1 kg/m2) and between genders. Concerning overweight and obesity, according to the objective BMI, the sensitivity was only 50% in women, and 70% in men, while the specificity was 99% in women and 98% in men.Our results show a poor sensitivity of self-reported weight and height data, to estimate overweight and obesity, thus, this method might not be reliable for studies of prevalence of obesity in this population.Self-reported height and weight data have been used in several studies with the purpose of determining the prevalence of overweight and obesity. Despite being a simple methodology, little information exists about the reliability of these measures, namely, in university students. The objective of this study was to determine the sensitivity and specificity of self-reported body mass index (BMI) to evaluate the prevalence of overweight and obesity in university students.In a convenience sample of 380 university students (226 women and 154 men), weight and height were obtained by self-reported measures and anthropometric assessment according to international standards methodology (objective). BMI was calculated from self-reported and direct measures.The discrepancy between objective and self-reported weight was not significative. For height, this discrepancy was significantly different in women, in men, and between genders. The difference between BMI values was significantly different in women (0.8 +/- 1.1 kg/m2), in men (0.4 +/- 1.1 kg/m2) and between genders. Concerning overweight and obesity, according to the objective BMI, the sensitivity was only 50% in women, and 70% in men, while the specificity was 99% in women and 98% in men.Our results show a poor sensitivity of self-reported weight and height data, to estimate overweight and obesity, thus, this method might not be reliable for studies of prevalence of obesity in this population.Ordem dos Médicos2004-10-31info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/1113oai:ojs.www.actamedicaportuguesa.com:article/1113Acta Médica Portuguesa; Vol. 17 No. 5 (2004): September-October; 353-8Acta Médica Portuguesa; Vol. 17 N.º 5 (2004): Setembro-Outubro; 353-81646-07580870-399Xreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPporhttps://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/1113https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/1113/778Clemente, LindaMoreira, PedroOliveira, BrunoAlmeida, Maria Daniel Vaz deinfo:eu-repo/semantics/openAccess2022-12-20T10:57:28Zoai:ojs.www.actamedicaportuguesa.com:article/1113Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:16:58.519230Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Body mass index: sensitivity and specificity.
Indice de massa corporal: sensibilidade e especificidade.
title Body mass index: sensitivity and specificity.
spellingShingle Body mass index: sensitivity and specificity.
Clemente, Linda
title_short Body mass index: sensitivity and specificity.
title_full Body mass index: sensitivity and specificity.
title_fullStr Body mass index: sensitivity and specificity.
title_full_unstemmed Body mass index: sensitivity and specificity.
title_sort Body mass index: sensitivity and specificity.
author Clemente, Linda
author_facet Clemente, Linda
Moreira, Pedro
Oliveira, Bruno
Almeida, Maria Daniel Vaz de
author_role author
author2 Moreira, Pedro
Oliveira, Bruno
Almeida, Maria Daniel Vaz de
author2_role author
author
author
dc.contributor.author.fl_str_mv Clemente, Linda
Moreira, Pedro
Oliveira, Bruno
Almeida, Maria Daniel Vaz de
description Self-reported height and weight data have been used in several studies with the purpose of determining the prevalence of overweight and obesity. Despite being a simple methodology, little information exists about the reliability of these measures, namely, in university students. The objective of this study was to determine the sensitivity and specificity of self-reported body mass index (BMI) to evaluate the prevalence of overweight and obesity in university students.In a convenience sample of 380 university students (226 women and 154 men), weight and height were obtained by self-reported measures and anthropometric assessment according to international standards methodology (objective). BMI was calculated from self-reported and direct measures.The discrepancy between objective and self-reported weight was not significative. For height, this discrepancy was significantly different in women, in men, and between genders. The difference between BMI values was significantly different in women (0.8 +/- 1.1 kg/m2), in men (0.4 +/- 1.1 kg/m2) and between genders. Concerning overweight and obesity, according to the objective BMI, the sensitivity was only 50% in women, and 70% in men, while the specificity was 99% in women and 98% in men.Our results show a poor sensitivity of self-reported weight and height data, to estimate overweight and obesity, thus, this method might not be reliable for studies of prevalence of obesity in this population.
publishDate 2004
dc.date.none.fl_str_mv 2004-10-31
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dc.language.iso.fl_str_mv por
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dc.relation.none.fl_str_mv https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/1113
https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/1113/778
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dc.publisher.none.fl_str_mv Ordem dos Médicos
publisher.none.fl_str_mv Ordem dos Médicos
dc.source.none.fl_str_mv Acta Médica Portuguesa; Vol. 17 No. 5 (2004): September-October; 353-8
Acta Médica Portuguesa; Vol. 17 N.º 5 (2004): Setembro-Outubro; 353-8
1646-0758
0870-399X
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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