Validity of Self-report Screening for Overweight and Obesity Evidence from the Canadian Community Health Survey
Validity of Self-report Screening for Overweight and Obesity Evidence from the Canadian Community Health Survey
复制标题
DOI：
10.1007/bf03405254
复制
发表时间：
2008-09-01
影响因子：
4.3
通讯作者：
Stewart, Jennifer M.
中科院分区：
文献类型：
--
作者：
Elgar, Frank J.;Stewart, Jennifer M.
目的：社区健康调查经常收集关于身高和体重的自我报告数据，以计算身体质量指数（BMI）并确定超重和肥胖病例。这项研究的目的是测试这种方法的有效性，并描述自我报告的身高，体重和BMI.Methods的偏见的年龄和性别的趋势：这项人口调查包括4,615青少年和成年人来自加拿大各地的采访，然后在他们的家中测量。使用自我报告和BMI分界点来识别超重和肥胖。结果：自我报告与身体测量高度相关，但平均而言，自我报告的身高比测量的身高高0.88厘米，自我报告的体重比测量的体重低2.33公斤，来自自我报告的BMI比来自测量的BMI低1.16。因此，自我报告的超重率（31.87%）和肥胖率（15.32%）低于测量值（分别为33.67%和22.92%）。BMI的自我报告偏差的幅度和变异性与女性性别，年龄较大，超重或obesity.Discussion的存在：自我报告和测量的身高和体重的比较表明，大多数调查受访者报告的体重和过度报告的高度。不管是有意还是无意，这些偏差在BMI公式中被混合在一起，影响了自我报告作为识别体重问题的工具的准确性。自我报告可能比身体测量更容易收集，但不应专门用作肥胖监测工具。
Objective: Community health surveys often collect self-report data on body height and weight for the purposes of calculating the Body Mass Index (BMI) and identifying cases of overweight and obesity. The aim of the study was to test the validity of this method and to describe age and gender trends in self-report bias in height, weight, and BMI.Methods: This population survey included 4,615 adolescents and adults from across Canada who were interviewed and then measured in their homes. Overweight and obesity were identified using self-reports and cut points in BMI.Results: Self-reports correlated highly with body measurements but on average, self-reported height was 0.88 cm greater than measured height, self-reported weight was 2.33 kg less than measured weight, and BMI derived from self-reports was 1.16 lower than BMI derived from measurements. Consequently, self-reports yielded lower rates of overweight (31.87%) and obesity (15.32%) than measurements (33.67% and 22.92%, respectively). The magnitude and variability of self-report bias in BMI were related to female gender, older age, and the presence of overweight or obesity.Discussion: Comparison of self-reported and measured height and weight indicated that most survey respondents under-reported weight and over-reported height. Intentional or not, these biases were compounded in the BMI formula and affected the accuracy of self-reports as a tool for identifying weight problems. Self-reports may be easier to collect than body measurements but should not be used exclusively as an obesity surveillance tool.