卵巢癌

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文娱活动和久坐行为与卵巢癌危险有关吗?

已有研究显示影响循环性激素的因素(如体力活动)可影响卵巢癌危险,但是先前流行病学研究的结果并不一致。为此,亚特兰大市美国癌症学会的Patel AV博士及其同事在该协会癌症预防研究II营养队列研究中分析了体力活动、久坐行为与卵巢癌危险之间的相关性。这是一项有关癌症发病率与死亡率的前瞻性研究,所用信息于1992年研究开始时获得。自1992至2001年,在59,695例登记时未患癌症的经绝后妇女中共确定了314例卵巢癌患者。在校正潜在的混杂因素后,使用Cox比例危险率模型计算危险率比值。结果显示,既往体力活动或基础文娱活动指标与该研究中的卵巢癌危险均无相关性(体力活动最多者与无体力活动者相比:危险率比值=0.73,95%可信区间:0.40-1.34)。但是,久坐行为持续时间延长与卵巢癌危险增高相关(≥6小时/天 vs.