dc.contributor.author | Magnusson, Karin | |
dc.contributor.author | Haugen, Ida K | |
dc.contributor.author | Østerås, Nina | |
dc.contributor.author | Nordsletten, Lars | |
dc.contributor.author | Natvig, Bård | |
dc.contributor.author | Hagen, Kåre B | |
dc.date.accessioned | 2015-10-20T12:50:39Z | |
dc.date.available | 2015-10-20T12:50:39Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | BMC Musculoskeletal Disorders. 2014 Dec 17;15(1):442 | |
dc.identifier.uri | http://hdl.handle.net/10852/47522 | |
dc.description.abstract | Background
Obesity is a well-known risk factor for osteoarthritis (OA). The majority of obesity research in OA is performed using self-reported BMI-data, however, its validity in persons with OA is unknown. The aim of this study was to compare the validity of self-reported body mass index (BMI) in persons with and without clinical osteoarthritis (OA) in a population-based survey.
Methods
Height and weight were self-reported, and thereafter measured in 600 persons with and without clinical OA according to the American College of Rheumatology-criteria (knees, hips and/or hands). We compared the differences between measured and self-reported heights, weights and BMIs (kg/m2) for the two groups and explored whether demographic/clinical factors were associated with inaccurate reporting in the OA patients using multivariate linear regression analyses.
Results
Mean (SD) age was 64 (8.7) years and 412 (69%) were women. Participants with clinical OA (n = 449) underreported their BMI to a greater extent than participants without clinical OA (n = 151) [mean (SD) difference 1.34 (1.68) kg/m2 and 0.78 (1.40) kg/m2 (p = 0.000), respectively]. There was a strong dose-dependent association between higher measured BMI and greater underreporting of BMI in multivariate analyses (BMI 25–29.99 kg/m2: B = 0.40, 95% CI, 0.06, 0.77), BMI ≥ 30 kg/m2: B = 1.30, 95% CI, 0.86, 1.75) in the clinical OA patients. A higher age as well as the time interval from self-reported to measured BMI-data were associated with inaccurate reporting.
Conclusions
Researchers using self-reported height and weight data should be aware of limited agreement with actual height and weight in overweight and obese individuals with clinical OA. | |
dc.language.iso | eng | |
dc.rights | Magnusson et al.; licensee BioMed Central. | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.title | The validity of self-reported body mass index in a population-based osteoarthritis study | |
dc.type | Journal article | |
dc.date.updated | 2015-10-20T12:50:39Z | |
dc.creator.author | Magnusson, Karin | |
dc.creator.author | Haugen, Ida K | |
dc.creator.author | Østerås, Nina | |
dc.creator.author | Nordsletten, Lars | |
dc.creator.author | Natvig, Bård | |
dc.creator.author | Hagen, Kåre B | |
dc.identifier.doi | http://dx.doi.org/10.1186/1471-2474-15-442 | |
dc.identifier.urn | URN:NBN:no-51587 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/47522/1/12891_2014_Article_2364.pdf | |
dc.type.version | PublishedVersion | |
cristin.articleid | 442 | |