Br J Clin Pharmacol:服用避孕药增加脑瘤风险

2015-01-26 张振江 译 医学论坛网

【1月26日讯】年轻妇女服用激素避孕药与胶质瘤之间存在关联,并增加了患病风险。该结论已通过病例对照研究在丹麦全国范围内被认可。 来自欧登塞大学医院和南丹麦大学的大卫Gaist博士和他的同事在他们的研究报告中讲到:“风险随着服用时间的增长而增加”。 今日已在英国临床药理学杂志 纸质版出刊。 他们写道,“在长期服用激素避孕药的观察者中,胶质瘤的患病风险几乎增加了两倍。” 然而,

【1月26日讯】年轻妇女服用激素避孕药胶质瘤之间存在关联,并增加了患病风险。该结论已通过病例对照研究在丹麦全国范围内被认可。

来自欧登塞大学医院和南丹麦大学的大卫Gaist博士和他的同事在他们的研究报告中讲到:“风险随着服用时间的增长而增加”。 今日已在英国临床药理学杂志 纸质版出刊。

他们写道,“在长期服用激素避孕药的观察者中,胶质瘤的患病风险几乎增加了两倍。”

然而,Gaist博士在声明中强调,“文章所述的这项风险维持并持续增加,是需要重点关注的。”

“沃恩发现一个重要的统计学数据,服用激素类避孕药与胶质瘤风险存在关联。风险/效益评价显示,符合条件的使用者仍然倾向于使用激素避孕药。”他解释道。

随后补充道,“尽管本项研究的发现引起了关注,我们仍然希望这些结果能够激发更多的研究者,对女性激素避孕药和胶质瘤风险的关联性作出更深一步的解读。”

卫生注册中心对脑胶质瘤的检索

已知口服避孕药与某些癌症存在关联,但几乎没有人针对中央神经系统肿瘤做出相关的研究。Gaist博士和他的同事们写到。

研究者使用丹麦卫生和行政登记的数据,选取了2000年至2009年间年龄在15岁至49岁之间初次诊断为脑胶质瘤的女性。登记机构提供了1995年至2009年接受激素避孕处方的女性信息。

研究者将仅有一个或没有激素避孕处方的女性定义为“不使用”,而“曾使用”的女性至少有两个处方。

在“曾使用”组中,将“当前/最近使用”定义为那些2-5年中诊断为脑胶质瘤前使用了一个处方,将“过去使用”定义为在2-5年间诊断为脑胶质瘤前无处方记录。

病例组包括317名患者,对照组包含2126名受试者,两组的年龄与受教育程度相当。

总体上,58.7%的病例受试者和50.1%的对照受试者属于曾使用者(P= .004)在这些曾使用者中,胶质瘤的比值比(OR)是1.5(95% 置信区间 [CI], 1.2- 2.0)

胶质瘤风险在过去使用组中比当前/最近使用组更高(OR, 1.7; 95% CI, 1.3- 2.4) 。

该风险的升高是由于口服雌激素与孕激素联合的避孕药导致(OR, 1.4; 95% CI, 1.0- 1.8),但单纯服用孕激素避孕药的风险最高(OR, 2.8; 95% CI, 1.6- 5.1)。两种避孕药的使用均可增加胶质瘤患病风险(OR, 1.5; 95% CI, 0.8- 3.0)。

也就是说,口服任意一种避孕药都可导致胶质瘤患病风险增加。服用避孕药不足一年者,比值比为1.4(95% CI, 0.8- 2.3);服用5年或以上避孕药者,他们的比值比是1.9 (95% CI, 1.2- 2.9)。

这项研究是由丹麦癌症协会欧,塞大学医院,和南丹麦大学教育资助支持。Gaist博士,查尔顿博士和伊根博士宣称与其无相关财务关系。

原始出处:

Use of Hormonal Contraceptives Linked to Brain Cancer

Andersen L1, Friis S, Hallas J, Ravn P, Kristensen BW, Gaist D.Hormonal contraceptive use and risk of glioma among younger women a nationwide case-control study.Br J Clin Pharmacol. 2014 Oct 26. doi: 10.1111/bcp.12535. [Epub ahead of print]

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    2015-04-27 yb6560
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    2015-08-13 jj000001
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    2015-01-28 jxrzshh

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