Agreement between self-reported and measured height, weight and body mass index in old age-a longitudinal study with 20 years of follow-up
Agreement between self-reported and measured height, weight and body mass index in old age-a longitudinal study with 20 years of follow-up
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DOI：
10.1093/ageing/afq038
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发表时间：
2010-07-01
期刊：
影响因子：
6.7
通讯作者：
Pedersen, Nancy L.
中科院分区：
文献类型：
--
作者：
Dahl, Anna K.;Hassing, Linda B.;Pedersen, Nancy L.
目的：评价老年自述身高、体重和BMI的准确性及其变化情况。设计：进行了一项以人群为基础的纵向研究，随访5次。参与者：774名生活在社区的男性和女性，基线年龄40-88岁（平均年龄63.9岁），纳入瑞典收养/双胞胎老龄化研究。方法：参与者以问卷形式自报身高和体重，由经验丰富的研究护士在20年间进行了5次面对面测试。BMI计算为体重（公斤）/身高（米）(2)。结果：潜在生长曲线模型显示，随着时间的推移，身高（0.038 cm/年）和BMI （0.016 kg/m(2)/年）的自我报告值和测量值之间的平均差异有所增加，但体重没有增加。结论：随着年龄的增长，自我报告的BMI和测量的BMI之间的平均差异有很小的增加，当在纵向研究中使用自我报告的BMI作为连续变量时，这可能不会影响结果。
Objective: 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.Design: a longitudinal population-based study with five times of follow-up was conducted.Participants: 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.Methods: 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)(2).Results: 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/m(2)/year), but not for weight.Conclusions: 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.