Am J Epidemiol:常喝咖啡可能会降低某些癌症患者死亡风险水平

2015-12-19 chenshuo译 MedSci原创

目前有超过一半的美国人每天都在喝咖啡,这使得众多的研究者们对于常饮用咖啡对人体健康状况的影响产生了极大的兴趣。

据调查统计,目前有超过一半的美国人每天都在喝咖啡,这使得众多的研究者们对于常饮用咖啡对人体健康状况的影响产生了极大的兴趣。


近日,美国国家癌症研究院流行病学和遗传学Erikka Loftfield博士发表在美国流行病学杂志上的一项研究成果表明,每天喝咖啡对人体是有好处的,而每天喝4-5杯咖啡甚至有可能会导致某些癌症患者的死亡风险水平降低。

在这之前,今年早些时期Erikka Loftfield博士曾发表过一篇研究报告,报告中指出每天喝4杯咖啡可降低黑色素的风险水平。

虽然在这项最新研究中并未发现饮用咖啡与癌症死亡率之间的直接联系,但研究结果确实表明了经常饮用饮料会降低死亡风险水平,包括心脏病和糖尿病等。

为了证明他们的研究结果,loftfield博士带领他的研究团队调查了大量有饮用咖啡习惯的人群。调查对象一共有90317名(对象为1998-2001年期间进行前列腺癌、肺癌、大肠癌以及卵巢癌筛查的人群)。所有的被调查者以往均无肿肿瘤病史及心血管疾病史。

研究统计,在10年的随访中,总共发生了8718例死亡。

其中,与那些不喝咖啡的人相比,每天饮用4-5杯咖啡的人患上糖尿病、心脏病、呼吸系统疾病、流感和自杀等各种原因导致死亡的风险均最低。另外,那些每天喝2-3杯咖啡的人死亡的风险也有所降低。

此外,研究人员在调查中还发现每天喝五杯咖啡(相当于400毫克的咖啡因)并不会导致任何长期的潜在的健康风险问题。

“在过去大量的研究中,人们已经发现饮用咖啡可以降低某些癌症的风险(如肝癌),但在这项研究中发现咖啡饮用量和总的癌症死亡率之间没有直接的联系。这可能是因为咖啡可以降低某些癌症的死亡风险,而不是所有癌症的死亡风险水平。”Erikka Loftfield博士Reuters Health专栏说道。

对于本研究的结果,目前尚存在一些争议,因为在研究的整个过程中,存在一些可能影响到研究结果的外在因素,如吸烟、饮酒和饮食习惯等方面。

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    2016-01-13 Lynee劲飞扬

    咖啡

    0

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    2015-12-26 hixiaoluo

    值得看,好好收藏

    0

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