Ashwell Associates Ltd, Ashwell, UK.
Obes Facts. 2009;2(2):97-103. doi: 10.1159/000203363. Epub 2009 Mar 31.
To analyse data from the nationally representative National Diet and Nutrition Survey (NDNS) collected in 2000/2001 and to investigate how the BMI and two proxy indicators of central fat distribution, namely the waist circumference and the waist to height ratio (WHtR), are associated with each other and with cardiovascular disease (CVD) risk factors.
Screening health risk by BMI alone would 'miss' 35% of men and 14% of women who are within the normal BMI range (18.5-25 kg/m(2)) but have central fat distribution, defined by WHtR > 0.5. In the total population this equates to 17% of all men and 6% of all women who would be inadequately screened by BMI alone. Compared to BMI, WHtR was more closely associated with CVD risk factors among both men and women. Furthermore, in a combined analysis of men and women, central fat distribution with a normal BMI was associated with higher levels of CVD risk factors than being overweight without central fat distribution.
WHtR is a simple and effective, non-invasive screening tool for CVD risk factors. Our proposed boundary value of 0.5 translates into a simple public health message: 'Keep your waist circumference to less than half your height'.
分析 2000/2001 年全国代表性的饮食和营养调查（NDNS）的数据，研究 BMI 与两种中心性肥胖分布的替代指标（腰围和腰高比[WHtR]）之间的相关性，以及与心血管疾病（CVD）风险因素的相关性。
仅用 BMI 筛查健康风险会“漏掉”35%的男性和 14%的女性，这些人处于正常 BMI 范围（18.5-25kg/m²），但 WHtR>0.5，表明存在中心性脂肪分布。在总人口中，这相当于所有男性的 17%和所有女性的 6%，他们仅通过 BMI 筛查是不充分的。与 BMI 相比，WHtR 与男性和女性的 CVD 风险因素更密切相关。此外，在男性和女性的综合分析中，具有正常 BMI 的中心性脂肪分布与更高水平的 CVD 风险因素相关，而没有中心性脂肪分布的超重则不相关。
WHtR 是一种简单有效的 CVD 风险因素非侵入性筛查工具。我们提出的 0.5 界值可以转化为一个简单的公共卫生信息：“保持腰围小于身高的一半”。
