New obesity body mass index threshold for self-reported data
Background:Since subjects included in population studies tend to underreport their weight and overestimate their height, obesity prevalence based on these data is often inaccurate. A reduced obesity threshold for self-reported height and weight was proposed and evaluated for its accuracy.Methods:Sel...
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| Veröffentlicht in: | Journal of epidemiology and community health (1979) 2009-02, Vol.63 (2), p.128-132 |
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| container_title | Journal of epidemiology and community health (1979) |
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| creator | Dauphinot, V Wolff, H Naudin, F Guéguen, R Sermet, C Gaspoz, J-M Kossovsky, M P |
| description | Background:Since subjects included in population studies tend to underreport their weight and overestimate their height, obesity prevalence based on these data is often inaccurate. A reduced obesity threshold for self-reported height and weight was proposed and evaluated for its accuracy.Methods:Self-reported heights and weights were compared with measured heights and weights in a Swiss city adult population representative sample. Participants were asked their height and weight and were invited to undergo a health examination, during which these data were measured. An optimal body mass index (BMI) value was assessed using receiver operating characteristic (ROC) curve analysis and its ability to correctly estimate obesity prevalence was tested on an external French population sample.Results:The Swiss population sample consisted of 13 162 subjects (mean age 51.4). The comparison between self-reported and measured data showed that obesity prevalence calculated from declarations was underestimated: among obese subjects (according to measured BMI), 33.6% of men and 27.5% of women were considered to be non-obese according to their self-report. Considering measures as a reference, a lower BMI cut-off of 29.2 kg/m2 was identified for both genders for the definition of obesity based on self-report. Respective misclassification was reduced to 17.9% in men and 16.9% in women. The validation procedure on a French population sample (n = 1858) yielded similar results.Conclusions:The reduced threshold based on self-report allowed a better estimation of obesity prevalence. Its use should be limited to population studies only. |
| doi_str_mv | 10.1136/jech.2008.077800 |
| format | Article |
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A reduced obesity threshold for self-reported height and weight was proposed and evaluated for its accuracy.Methods:Self-reported heights and weights were compared with measured heights and weights in a Swiss city adult population representative sample. Participants were asked their height and weight and were invited to undergo a health examination, during which these data were measured. An optimal body mass index (BMI) value was assessed using receiver operating characteristic (ROC) curve analysis and its ability to correctly estimate obesity prevalence was tested on an external French population sample.Results:The Swiss population sample consisted of 13 162 subjects (mean age 51.4). The comparison between self-reported and measured data showed that obesity prevalence calculated from declarations was underestimated: among obese subjects (according to measured BMI), 33.6% of men and 27.5% of women were considered to be non-obese according to their self-report. Considering measures as a reference, a lower BMI cut-off of 29.2 kg/m2 was identified for both genders for the definition of obesity based on self-report. Respective misclassification was reduced to 17.9% in men and 16.9% in women. The validation procedure on a French population sample (n = 1858) yielded similar results.Conclusions:The reduced threshold based on self-report allowed a better estimation of obesity prevalence. Its use should be limited to population studies only.</description><identifier>ISSN: 0143-005X</identifier><identifier>EISSN: 1470-2738</identifier><identifier>DOI: 10.1136/jech.2008.077800</identifier><identifier>PMID: 18801799</identifier><identifier>CODEN: JECHDR</identifier><language>eng</language><publisher>London: BMJ Publishing Group Ltd</publisher><subject>Adult ; Aged ; Anthropometry - methods ; Biological and medical sciences ; Body Height ; Body Mass Index ; Body Weight ; Chronic illnesses ; Community health ; Epidemiologic Methods ; Female ; France - epidemiology ; General aspects ; Health surveys ; Humans ; Male ; Medical sciences ; Men ; Metabolic diseases ; Middle Aged ; Miscellaneous ; Morbidity ; Morphology ; Obesity ; Obesity - diagnosis ; Obesity - epidemiology ; Obesity - physiopathology ; Overweight ; Population studies ; Public health ; Public health. Hygiene ; Public health. Hygiene-occupational medicine ; Questionnaires ; Research reports ; Self Disclosure ; Self report ; Self reports ; Validity ; Womens health</subject><ispartof>Journal of epidemiology and community health (1979), 2009-02, Vol.63 (2), p.128-132</ispartof><rights>2009 the BMJ Publishing Group</rights><rights>Copyright © 2009 BMJ Publishing Group</rights><rights>2009 INIST-CNRS</rights><rights>Copyright: 2009 2009 the BMJ Publishing Group</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b452t-9fb54d477dfe1dc4bee37bb5502b70711ee5a326cf11f82a595d591e666aa3953</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://jech.bmj.com/content/63/2/128.full.pdf$$EPDF$$P50$$Gbmj$$H</linktopdf><linktohtml>$$Uhttps://jech.bmj.com/content/63/2/128.full$$EHTML$$P50$$Gbmj$$H</linktohtml><link.rule.ids>114,115,314,776,780,799,3182,23551,27903,27904,57996,58229,77347,77378</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20998372$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18801799$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Dauphinot, V</creatorcontrib><creatorcontrib>Wolff, H</creatorcontrib><creatorcontrib>Naudin, F</creatorcontrib><creatorcontrib>Guéguen, R</creatorcontrib><creatorcontrib>Sermet, C</creatorcontrib><creatorcontrib>Gaspoz, J-M</creatorcontrib><creatorcontrib>Kossovsky, M P</creatorcontrib><title>New obesity body mass index threshold for self-reported data</title><title>Journal of epidemiology and community health (1979)</title><addtitle>J Epidemiol Community Health</addtitle><description>Background:Since subjects included in population studies tend to underreport their weight and overestimate their height, obesity prevalence based on these data is often inaccurate. A reduced obesity threshold for self-reported height and weight was proposed and evaluated for its accuracy.Methods:Self-reported heights and weights were compared with measured heights and weights in a Swiss city adult population representative sample. Participants were asked their height and weight and were invited to undergo a health examination, during which these data were measured. An optimal body mass index (BMI) value was assessed using receiver operating characteristic (ROC) curve analysis and its ability to correctly estimate obesity prevalence was tested on an external French population sample.Results:The Swiss population sample consisted of 13 162 subjects (mean age 51.4). The comparison between self-reported and measured data showed that obesity prevalence calculated from declarations was underestimated: among obese subjects (according to measured BMI), 33.6% of men and 27.5% of women were considered to be non-obese according to their self-report. Considering measures as a reference, a lower BMI cut-off of 29.2 kg/m2 was identified for both genders for the definition of obesity based on self-report. Respective misclassification was reduced to 17.9% in men and 16.9% in women. The validation procedure on a French population sample (n = 1858) yielded similar results.Conclusions:The reduced threshold based on self-report allowed a better estimation of obesity prevalence. Its use should be limited to population studies only.</description><subject>Adult</subject><subject>Aged</subject><subject>Anthropometry - methods</subject><subject>Biological and medical sciences</subject><subject>Body Height</subject><subject>Body Mass Index</subject><subject>Body Weight</subject><subject>Chronic illnesses</subject><subject>Community health</subject><subject>Epidemiologic Methods</subject><subject>Female</subject><subject>France - epidemiology</subject><subject>General aspects</subject><subject>Health surveys</subject><subject>Humans</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Men</subject><subject>Metabolic diseases</subject><subject>Middle Aged</subject><subject>Miscellaneous</subject><subject>Morbidity</subject><subject>Morphology</subject><subject>Obesity</subject><subject>Obesity - diagnosis</subject><subject>Obesity - epidemiology</subject><subject>Obesity - physiopathology</subject><subject>Overweight</subject><subject>Population studies</subject><subject>Public health</subject><subject>Public health. Hygiene</subject><subject>Public health. 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A reduced obesity threshold for self-reported height and weight was proposed and evaluated for its accuracy.Methods:Self-reported heights and weights were compared with measured heights and weights in a Swiss city adult population representative sample. Participants were asked their height and weight and were invited to undergo a health examination, during which these data were measured. An optimal body mass index (BMI) value was assessed using receiver operating characteristic (ROC) curve analysis and its ability to correctly estimate obesity prevalence was tested on an external French population sample.Results:The Swiss population sample consisted of 13 162 subjects (mean age 51.4). The comparison between self-reported and measured data showed that obesity prevalence calculated from declarations was underestimated: among obese subjects (according to measured BMI), 33.6% of men and 27.5% of women were considered to be non-obese according to their self-report. Considering measures as a reference, a lower BMI cut-off of 29.2 kg/m2 was identified for both genders for the definition of obesity based on self-report. Respective misclassification was reduced to 17.9% in men and 16.9% in women. The validation procedure on a French population sample (n = 1858) yielded similar results.Conclusions:The reduced threshold based on self-report allowed a better estimation of obesity prevalence. Its use should be limited to population studies only.</abstract><cop>London</cop><pub>BMJ Publishing Group Ltd</pub><pmid>18801799</pmid><doi>10.1136/jech.2008.077800</doi><tpages>5</tpages></addata></record> |
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| ispartof | Journal of epidemiology and community health (1979), 2009-02, Vol.63 (2), p.128-132 |
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| subjects | Adult Aged Anthropometry - methods Biological and medical sciences Body Height Body Mass Index Body Weight Chronic illnesses Community health Epidemiologic Methods Female France - epidemiology General aspects Health surveys Humans Male Medical sciences Men Metabolic diseases Middle Aged Miscellaneous Morbidity Morphology Obesity Obesity - diagnosis Obesity - epidemiology Obesity - physiopathology Overweight Population studies Public health Public health. Hygiene Public health. Hygiene-occupational medicine Questionnaires Research reports Self Disclosure Self report Self reports Validity Womens health |
| title | New obesity body mass index threshold for self-reported data |
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