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韩国和白种人超重的绝经前女性的体重指数与体脂百分比随年龄的关系有所不同。

Korean and Caucasian overweight premenopausal women have different relationship of body mass index to percent body fat with age.

作者信息

Chung Sochung, Song Mi-Yeon, Shin Hyun-Dae, Kim Deog-Yoon, He Qing, Heshka Stan, Wang Jack, Thornton John, Laferrère Blandine, Pi-Sunyer F Xavier, Gallagher Dympna

机构信息

Department of Medicine, Obesity Research Center, St. Luke's-Roosevelt Hospital and College of Physicians & Surgeons, Columbia University, New York, NY 10025, USA.

出版信息

J Appl Physiol (1985). 2005 Jul;99(1):103-7. doi: 10.1152/japplphysiol.01153.2004. Epub 2005 Mar 17.

Abstract

The aim of the study was to investigate in premenopausal women whether the relationship between percentage body fat (PBF) and body mass index (BMI; in kg/m2) differs between Korean Asians (Ko-As) living in Seoul, South Korea, and Caucasians (Ca) living in New York City. Healthy premenopausal women (50 Ko-As; 38 Ca), ages 22-50 yr, were studied. Weight, height, and PBF by dual-energy X-ray absorptiometry were measured. Total body dual-energy X-ray absorptiometry data were collected using GE-Lunar systems (Prodigy-Korea and DPXL-New York), and all scan analyses were performed by one technician in New York. Similar soft tissue phantoms were used for daily instrument calibrations at both sites. The relationship between PBF and BMI was assessed by multiple regression analysis with race, age, reciprocal of BMI (1/BMI), and a race-by-age interaction as the final independent variables. Race (P = 0.003) and 1/BMI (P < 0.001) were significantly related to PBF in this model. A significant race-by-age interaction (P = 0.039) indicated that the slope of the lines for PBF vs. age differed between Ko-As and Ca. This study demonstrates in a Ko-As sample that the BMI-fat relationship differs significantly from that in a comparable group of Caucasian women. Investigators who use BMI as an index of fatness should be aware of the well documented differences in the relationship of BMI and fatness across race/ethnic groups.

摘要

该研究的目的是调查在绝经前女性中,韩国首尔的亚洲人(Ko-As)与纽约市的高加索人(Ca)相比,体脂百分比(PBF)与体重指数(BMI;单位:kg/m²)之间的关系是否存在差异。对年龄在22至50岁之间的健康绝经前女性(50名Ko-As;38名Ca)进行了研究。通过双能X线吸收法测量体重、身高和PBF。使用GE-Lunar系统(韩国的Prodigy和纽约的DPXL)收集全身双能X线吸收法数据,所有扫描分析均由纽约的一名技术人员进行。两地点均使用相似的软组织模型进行每日仪器校准。以种族、年龄、BMI的倒数(1/BMI)以及种族与年龄的交互作用作为最终自变量,通过多元回归分析评估PBF与BMI之间的关系。在该模型中,种族(P = 0.003)和1/BMI(P < 0.001)与PBF显著相关。显著的种族与年龄交互作用(P = 0.039)表明,Ko-As和Ca的PBF与年龄关系曲线的斜率不同。本研究表明,在Ko-As样本中,BMI与脂肪的关系与可比的高加索女性群体存在显著差异。将BMI用作肥胖指标的研究人员应意识到,不同种族/族裔群体中BMI与肥胖关系的差异已有充分记录。

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