Del Brutto Oscar H, Mera Robertino M
School of Medicine, Universidad Espíritu Santo, Ecuador; Department of Neurological Sciences, Hospital-Clínica Kennedy, Guayaquil, Ecuador.
Gastroenterology Department, Vanderbilt University, Nashville, TN, United States.
Diabetes Metab Syndr. 2014 Apr-Jun;8(2):115-8. doi: 10.1016/j.dsx.2014.04.002. Epub 2014 May 22.
To assess whether the anthropometric index used by the American Heart Association (AHA) to evaluate cardiovascular health (CVH) status, i.e., the body mass index (BMI), could also be of value in ethnic groups phenotypically different than Whites.
CVH status was evaluated in 616 Ecuadorian natives/mestizos aged ≥40 years with the seven metrics proposed by the AHA. Then, the BMI was replaced by the waist-to-hip (WtoHp) and the waist-to-height (WtoHt) ratios to estimate whether these changes modify the CVH status and the presence of ≥5 ideal metrics per person.
Replacing the BMI for either the WtoHt or the WtoHp ratios reduces the percentage of persons with ≥5 ideal CVH metrics from 13%, to 8% (p<0.004) and to 6.8% (p<0.0003), respectively. The number of persons with a poor CVH status increased when the WtoHt ratio was used instead of the BMI (81.5% versus 69.8%, p<0.0001).
These results may explain the paradox "better CVH status/similar stroke prevalence" previously found in Ecuadorian natives/mestizos, and suggest that the WtoHt ratio could be the best anthropometric index to be included in the set of metrics used to evaluate the CVH status in populations that are phenotypically different than Whites.
评估美国心脏协会（AHA）用于评估心血管健康（CVH）状况的人体测量指数，即体重指数（BMI），在表型上与白人不同的种族群体中是否也有价值。
采用AHA提出的七项指标，对616名年龄≥40岁的厄瓜多尔原住民/混血儿的CVH状况进行评估。然后，用腰臀比（WtoHp）和腰高比（WtoHt）取代BMI，以估计这些变化是否会改变CVH状况以及每人≥5项理想指标的情况。
用WtoHt或WtoHp比率取代BMI后，具有≥5项理想CVH指标的人群百分比分别从13%降至8%（p<0.004）和6.8%（p<0.0003）。当使用WtoHt比率而非BMI时，CVH状况较差的人数增加（81.5%对69.8%，p<0.0001）。
这些结果可能解释了先前在厄瓜多尔原住民/混血儿中发现的“更好的CVH状况/相似的中风患病率”这一矛盾现象，并表明WtoHt比率可能是用于评估表型与白人不同人群CVH状况的指标集中最佳的人体测量指数。
