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Centre for Policy on Ageing | |
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Agreement between self-reported and measured height, weight and body mass index in old age
— a longitudinal study with 20 years of follow-up | | Author(s) | Anna K Dahl, Linda B Hassing, Eleonor I Fransson |
| Journal title | Age and Ageing, vol 39, no 4, July 2010 |
| Pages | pp 445-450 |
| Source | http://www.ageing.oxfordjournals.org http://www.bgs.org.uk doi:10.1093/ageing/afq038 |
| Keywords | Musculoskeletal systems ; Height ; Weight ; Living in the community ; Longitudinal surveys ; Sweden. |
| Annotation | Self-reported body mass index (BMI) based on self-reported height and weight is a widely used measure of adiposity in epidemiological research. Knowledge about the accuracy of these measures in late life is scarce. The study aimed to evaluate the accuracy and changes in accuracy of self-reported height, weight and BMI calculated from self-reported height and weight in late life. A longitudinal population-based study with five times of follow-up was conducted. Participants were seven hundred seventy-four community-living men and women, aged 40-88 at baseline (mean age 63.9), included in The Swedish Adoption/Twin Study of Aging. Participants self-reported their height and weight in a questionnaire, and height and weight were measured by experienced research nurses at an in-person testing five times during a 20-year period. BMI was calculated as weight (kilogramme)/height (metre). Results found latent growth curve modelling showed an increase in the mean difference between self-reported and measured values over time for height (0.038 cm/year) and BMI (0.016 kg/m2/year), but not for weight. In conclusion, there is a very small increase in the mean difference between self-reported and measured BMI with ageing, which probably would not affect the results when self-reported BMI is used as a continuous variable in longitudinal studies. (KJ/RH). |
| Accession Number | CPA-100809211 A |
| Classmark | BK6: 53H: 4X6: K4: 3J: 76P |
Data © Centre for Policy on Ageing |
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| ...from the Ageinfo database published by Centre for Policy on Ageing. |
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