酒精摄入与食管腺癌的危险性

2011-07-22 MedSci原创 MedSci原创

来源:医学论坛网       酒精摄入是食管鳞状细胞癌(OSCC)的一种强烈的、明确的危险因素,而最近,美国学者尼尔(Neal Freedman)等的研究发现,与OSCC相反,酒精消耗量的增加并没有引起食管腺癌(OA)或食管胃交界处相邻的肿瘤(OGJA)的危险性增加。相关报道发表在《胃肠道》(Gut)上。    

来源:医学论坛网

      酒精摄入是食管鳞状细胞癌(OSCC)的一种强烈的、明确的危险因素,而最近,美国学者尼尔(Neal Freedman)等的研究发现,与OSCC相反,酒精消耗量的增加并没有引起食管腺癌(OA)或食管胃交界处相邻的肿瘤(OGJA)的危险性增加。相关报道发表在《胃肠道》(Gut)上。

    为了研究酒精摄入与OA或OGJA的相关性,Barrett食管和食管腺癌联合会(BEACON)采用了9个病例对照研究和2个队列研究来推断酒精摄入和OSCC、OA以及OGJA的相关性。

    研究者们在每一项研究中都收集了如下信息:酒精摄入、年龄、性别、教育、体重指数、胃食管反流,以及吸烟状况,共包括1821例OA、1837 例OGJA、七个包括1016例OSCC的研究。他们对酒精摄入进行了分类,与非饮酒者相比,使用多因素调整后的罗杰斯(logistic)回归模型计算研究特异性OR和95% CI;并采用随机效应模型得出总体风险估计。

    在OA 或OGJA中,随着酒精摄入水平的升高,没有观察到风险增加。OA和OGJA,在频率最高的分类(每天≥7杯)中的OR值,分别为:0.97(95% CI,0.68 比1.36)和0.77(95% CI = 0.54 比1.10)。提示性的发现将中度摄入量(如,每天0.5 到<1 杯)与OA(OR 0.63,95% CI 0.41到0.99)和OGJA(OR 0.78,95% CI 0.62到0.99)危险性的降低联系在了一起。与此相反,酒精摄入与OSCC的危险性升高紧密相关(每天≥7 杯的OR 值为9.62,95% CI 4.26 到21.71)。

    因此,与OSCC相反,酒精消耗量的增加并没有引起OA 或OGJA的危险性增加。而中等酒精摄入量所观察到的明显的负相关,应该在未来的前瞻性研究中进行进一步的评估。

    相关内容:Alcohol intake and risk of oesophageal adenocarcinoma: a pooled analysis from the BEACON Consortium


 

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