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Temporal trends in misclassification patterns of measured and self-report based body mass index categories - findings from three population surveys in Ireland

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dc.contributor.author Shiely, Frances
dc.contributor.author Perry, Ivan J.
dc.contributor.author Lutomski, Jennifer E.
dc.contributor.author Harrington, Janas M.
dc.contributor.author Kelleher, Cecily C.
dc.contributor.author McGee, Hannah
dc.contributor.author Hayes, Kevin
dc.date.accessioned 2014-04-04T10:12:36Z
dc.date.available 2014-04-04T10:12:36Z
dc.date.issued 2010
dc.identifier.citation Shiely, F; Perry, IJ; Lutomski, J; Harrington, J; Kelleher, CC; Mcgee, H; Hayes, K (2010) 'Temporal trends in misclassification patterns of measured and self-report based body mass index categories - findings from three population surveys in Ireland'. BMC PUBLIC HEALTH, 10 . en_US
dc.identifier.issn 1471-2458
dc.identifier.uri http://hdl.handle.net/10344/3761
dc.description peer-reviewed en_US
dc.description.abstract Background: As the use of self-reported data to classify obesity continues, the temporal change in the accuracy of self-report measurement when compared to clinical measurement remains unclear. The objective of this study was to examine temporal trends in misclassification patterns, as well as sensitivity and specificity, of clinically measured versus self-report based body mass index (BMI) from three national lifestyle surveys over a 10-year period. Methods: The Surveys of Lifestyle Attitudes and Nutrition (SLAN) were interview based cross-sectional survey/measurements involving nationally representative samples in 1998, 2002 and 2007. Data from a subsample of both self-reported and measured height and weight were available from 66 men and 142 women in 1998, 147 men and 184 women in 2002 and 909 men and 1128 women in 2007. Respondents were classified into the BMI categories normal (= 30 kg m(-2)). Results: Underreporting of BMI increased across the three surveys (14%-> 21%-> 24%; p = 0.002). Sensitivity scores for the normal category exceeded 94% in all three surveys but decreased for the overweight (75%-> 68%-> 66%) and obese categories (80%-> 64%-> 53%). Simultaneously, specificity levels remained high. Conclusions: BMI values based on self-reported determinations of height and weight in population samples are underestimating the true prevalence of the obesity epidemic and this underestimation is increasing with time. The decreased sensitivity and consistently high specificity scores in the obese category across time, highlights the limitation of self-report based BMI classifications and the need for simple, readily comprehensible indicators of obesity. en_US
dc.language.iso eng en_US
dc.publisher BioMed Central en_US
dc.relation.ispartofseries BMC Public Health;10: 560
dc.relation.uri http://www.biomedcentral.com/1471-2458/10/560
dc.subject nutrition examination survey en_US
dc.subject national-health en_US
dc.subject weight en_US
dc.subject height en_US
dc.subject obesity en_US
dc.subject prevalence en_US
dc.subject accuracy en_US
dc.subject validity en_US
dc.subject bias en_US
dc.title Temporal trends in misclassification patterns of measured and self-report based body mass index categories - findings from three population surveys in Ireland en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.date.updated 2014-04-04T09:09:16Z
dc.description.version PUBLISHED
dc.identifier.doi 10.1186/1471-2458-10-560
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1132461
dc.internal.copyrightchecked Yes
dc.contributor.funder Health Promotion and Policy Unit of the Department of Health and Children
dc.identifier.journaltitle BMC Public Health
dc.description.status peer-reviewed


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