JBMR:无意减肥的绝经后妇女体重减轻增加骨折风险(GLSOW研究)

2016-02-21 MedSci MedSci原创

根据最近的研究结果,在12个月内存在至少10磅无意体重减轻的绝经后妇女5年之内的任何部位骨折发生的风险增加15%,髋部、脊柱和锁骨骨折的风险更大。

根据最近的研究结果,在12个月内存在至少10磅无意体重减轻的绝经后妇女5年之内的任何部位骨折发生的风险增加15%,髋部、脊柱和锁骨骨折的风险更大。

有目的减肥和无意识体重丢失之间的区别非常重要,因为无意识体重丢失往往与可以独立导致增加骨量丢失和骨折风险的状况共存。此外,无意识体重减轻可以从任何基线体重开始,而有目的减肥更有可能发生在超重或肥胖的女性身上。

研究人员分析了40179名妇女的数据,参与者年龄至少55岁,这项研究是GLSOW研究的一部分(Global Longitudinal Study of Osteoporosis in Women,妇女骨质疏松症的全球纵向研究),GLSOW研究是基于实践,前瞻性队列研究(平均年龄68岁)。所有参与者都完成了基线自填问卷和1235年骨折史、目前用药和其他医疗诊断报告。无意识体重减轻被定义为“是”的问题:“在过去的12个月中,您是否体重减轻超过10磅,但没有采取任何有目的减肥措施?”使用Kaplan-Meier方法估计5年累积骨折发生率,使用Cox多元回归模型衡量体重减轻作为随时间变化的协变量的相对风险。

研究结果显示,共有3897名妇女报告发生骨折; 3124名妇女(7.8%)报告在基线、3149名妇女(7.8%)报告在第2年、3070名妇女(7.6%)报告在第3年存在无意识体重减轻。

报告存在无意识体重减轻的妇女显著的更容易发生骨折,尤其是锁骨、手腕、脊椎、肋骨、臀部和骨盆骨折。

调整后的HR表明1年内无意识体重减轻和骨折之间存在显著关联,臀部(HR  1.59, 95CII 1.09-2.33),脊柱(HR  1.63; 95CI 1.19-2.23),锁骨(HR  1.72, 95CI 1-2.96),在第五年时这些显著关联仍然存在。

原始出处

Compston JE, Wyman A, FitzGerald G, Adachi JD, Chapurlat RD, Cooper C, Díez-Pérez A, Gehlbach SH, Greenspan SL, Hooven FH, LaCroix AZ, March L, Netelenbos JC, Nieves JW, Pfeilschifter J, Rossini M, Roux C, Saag KG, Siris ES, Silverman S, Watts NB, Anderson FA Jr. Increase in Fracture Risk Following Unintentional Weight Loss in Postmenopausal Women: The Global Longitudinal Study of Osteoporosis in Women. J Bone Miner Res. 2016 Feb 9. doi: 10.1002/jbmr.2810.

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    2016-02-23 heli0118
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    2016-02-23 zxxiang

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