腰围测量误差：知识鸿沟。
Measurement error of waist circumference: gaps in knowledge.
机构信息
Department of Public and Occupational Health, EMGO Institute for Health and Care Research, VU University Medical Center, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands.
出版信息
Public Health Nutr. 2013 Feb;16(2):281-8. doi: 10.1017/S1368980012002741. Epub 2012 May 25.
OBJECTIVE
It is not clear whether measuring waist circumference in clinical practice is problematic because the measurement error is unclear, as well as what constitutes a clinically relevant change. The present study aimed to summarize what is known from state-of-the-art research.
DESIGN
To identify the magnitude of the measurement error of waist circumference measurements from the literature, a search was conducted in PubMed from 1975 to February 2011.
RESULTS
The measurement error may vary between 0·7 cm and 15 cm. Taking a realistic range of measurable waist circumference into account (60-135 cm), we argue that a short-term clinically relevant change in waist circumference of 5 % may lie between 3·0 and 6·8 cm and a maintained clinically relevant change of 3 % between 1·8 and 4·1 cm.
CONCLUSIONS
Based on these results, we conclude it may be difficult to distinguish clinically relevant change from measurement error in individual subjects, due to the large measurement error and unclear definition of clinically relevant change. More research is needed to address these gaps in knowledge. To minimize measurement error, we recommend using a uniform measurement protocol, training and repeated measurements.
目的
目前尚不清楚在临床实践中测量腰围是否存在问题，因为测量误差和临床相关变化的定义均不明确。本研究旨在总结现有研究的结果。
设计
为明确文献中腰围测量的测量误差幅度，我们在 PubMed 中进行了 1975 年至 2011 年 2 月间的检索。
结果
测量误差可能在 0.7 cm 至 15 cm 之间变化。考虑到实际可测量的腰围范围（60-135 cm），我们认为短期临床相关的腰围变化 5%可能在 3.0 至 6.8 cm 之间，而保持 3%的临床相关变化则在 1.8 至 4.1 cm 之间。
结论
基于这些结果，我们认为由于测量误差较大且临床相关变化的定义不明确，因此在个体患者中可能难以区分临床相关变化与测量误差。需要开展更多的研究来填补这些知识空白。为了最大限度地减少测量误差，我们建议使用统一的测量方案、培训和重复测量。
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