Body mass index: sensitivity and specificity.
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , , |
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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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 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/1113 oai:ojs.www.actamedicaportuguesa.com:article/1113 |
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https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/1113 |
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oai:ojs.www.actamedicaportuguesa.com:article/1113 |
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por |
language |
por |
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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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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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