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目的:我们假设具有正常体质指数(BMI),但高体脂率(BF)即正常体重肥胖(NWO)的受试者,患心脏代谢失调的比例更高,且心血管(CV)死亡风险更大。方法与结果:我们分析了6171名年龄>20岁的受试者,来自第三次全国健康与营养调查(NHANES III)及其死亡率研究,这些受试者的BMI在正常范围(18.5-24.9 kg/m²),并接受了包括体成分评估、血液检测及心血管风险因素评估的完整检查。随访中位时间为8.8年,>99%的受试者有生存信息。我们根据性别特异的体脂率三分位数划分样本。最高三分位体脂率(男性>23.1%,女性>33.3%)定义为NWO。与低体脂组相比,NWO受试者代谢综合征的患病率高四倍(16.6% vs. 4.8%,P<0.0001)。NWO受试者还表现出更高的血脂异常、高血压(男性)及心血管疾病(女性)患病率。调整后,女性NWO组心血管死亡风险显著增加2.2倍(HR=2.2;95% CI,1.03-4.67),相比低体脂组。结论:正常BMI但高体脂率的正常体重肥胖,与心脏代谢失调、代谢综合征及心血管风险因素的高患病率相关。在女性中,NWO独立关联于心血管死亡风险增加。
“Using the term 'normal weight obesity' is really a way of being more precise about the changing conceptualization of obesity, because the real definition of obesity is excess body fat. Our study demonstrates that even people with normal weight may have excessive body fat, and that these people are at risk for metabolic abnormalities that lead to diabetes and, eventually, to heart disease.”
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Abel Romero‐Corral
Virend K. Somers
Justo Sierra‐Johnson
European Heart Journal
Karolinska Institutet
Mayo Clinic
IRCCS Istituto Auxologico Italiano
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Romero‐Corral 等人(星期五,)研究了该问题。
www.synapsesocial.com/papers/69f56d259954c85918edcb2c — DOI: https://doi.org/10.1093/eurheartj/ehp487
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