Lancet Oncol:肥胖增加癌症发生风险

2015-02-05 Jessie Li 译 MedSci原创

背景:高体质指数(即高BMI,定义为大于等于25kg/m2)是多种慢性疾病和死亡的危险因素。全世界的超重和肥胖问题不断加重,由此对健康造成的危害引起了人们的关注。多项研究显示,高BMI与癌症发生风险增高有关,包括食管腺癌、结肠癌、直肠癌、肾癌、胰腺癌、女性胆囊癌、绝经后乳腺癌、卵巢癌及子宫内膜癌。但已有研究未考虑高BMI导致新发癌症的时滞(lag time,即高BMI导致癌症的发生需要一定的时间)

背景:


高体质指数(即高BMI,定义为大于等于25kg/m2)是多种慢性疾病和死亡的危险因素。全世界的超重和肥胖问题不断加重,由此对健康造成的危害引起了人们的关注。多项研究显示,高BMI与癌症发生风险增高有关,包括食管腺癌、结肠癌、直肠癌、肾癌、胰腺癌、女性胆囊癌、绝经后乳腺癌卵巢癌及子宫内膜癌。但已有研究未考虑高BMI导致新发癌症的时滞(lag time,即高BMI导致癌症的发生需要一定的时间)及相关的危险因素,如激素替代治疗(hormone replacement therapy,HRT)和吸烟。本研究考虑了时滞和相关危险因素,分析了2012年由于高BMI导致的癌症全球负担增加情况,目的是为公共卫生政策和将来的研究提供依据。

方法:

在该基于人群的研究中,研究者运用相对危险度(relative risks,RR)和成人的BMI值(根据不同年龄层、性别和国别划分)来计算人群归因分值(population attributable fractions,PAFs)。并假设高BMI与癌症发生之间具有10年的时间滞后,因此运用2002年的BMI数据和GLOBOCAN2012的癌症数据来计算人群归因分值,由此估计由于高BMI导致的新发癌症病例数。研究者还根据有1982年BMI记录的数据,估计了由于1982年后保持BMI在稳定的水平而可能避免癌症的比例。研究者还进行了二次分析:验证该模型并估计激素替代治疗的使用和吸烟在其中所起的作用。

结果
研究者发现,2012年,在界范围内有481 000例(3.6%)的成人(加上10年的滞后期后大于等于30岁的)新发癌症病例是由于高BMI所致。女性的人群归因分值高于男性(5.4% vs. 1.9%)。在非常高和高人类发展指数(human development indices,HDIs)的国家,由此增加的癌症负担(PAF:5.3% vs. 4.8%)要高于中人类发展指数(1.6%)和低人类发展指数(1.0%)的国家。在高BMI导致的新发癌症病例中,子宫体癌、绝境后乳腺癌和结肠癌占据63.6%。2012年与高BMI有关的癌症病例中有1/4(约118 000例)是由于这些患者在1982年后BMI增加所致。

该研究结果强调,全球应一起努力来减少不断增加的高BMI人口数。假设高BMI与癌症之间是因果关系,那么,继续现在这种人口体重不断增加的生存模式将会导致将来的癌症负担不断增加。

原始出处:

Arnold M, Pandeya N, Byrnes G, Renehan AG, Stevens GA, Ezzati M, Ferlay J, Miranda JJ, Romieu I, Dikshit R, Forman D, Soerjomataram I. Global burden of cancer attributable to high body-mass index in 2012: a population-based study.Lancet Oncol. 2015 Jan;16(1):36-46.

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    2015-05-24 howi
  2. [GetPortalCommentsPageByObjectIdResponse(id=1827997, encodeId=591e182e997c5, content=<a href='/topic/show?id=1b6210686b2' target=_blank style='color:#2F92EE;'>#Lancet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10686, encryptionId=1b6210686b2, topicName=Lancet)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Sun May 24 22:06:00 CST 2015, time=2015-05-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1864600, encodeId=49c918646004a, content=<a href='/topic/show?id=16ce133504e' target=_blank style='color:#2F92EE;'>#Oncol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13350, encryptionId=16ce133504e, topicName=Oncol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b63894, createdName=minlingfeng, createdTime=Thu Oct 08 17:06:00 CST 2015, time=2015-10-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=16077, encodeId=f14c160e7b6, content=i 有, beContent=null, objectType=article, channel=null, level=null, likeNumber=137, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=cce01615276, createdName=Johnny1989, createdTime=Mon Feb 16 15:36:00 CST 2015, time=2015-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=15901, encodeId=d36d159019f, content=已阅, beContent=null, objectType=article, channel=null, level=null, likeNumber=92, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c68e1614119, createdName=windmilL1989, createdTime=Mon Feb 16 14:40:00 CST 2015, time=2015-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=15200, encodeId=880d152006a, content=类似研究会越来越多, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=175.8.168.**, createdTime=Thu Feb 05 22:54:00 CST 2015, time=2015-02-05, status=1, ipAttribution=)]
    2015-10-08 minlingfeng
  3. [GetPortalCommentsPageByObjectIdResponse(id=1827997, encodeId=591e182e997c5, content=<a href='/topic/show?id=1b6210686b2' target=_blank style='color:#2F92EE;'>#Lancet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10686, encryptionId=1b6210686b2, topicName=Lancet)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Sun May 24 22:06:00 CST 2015, time=2015-05-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1864600, encodeId=49c918646004a, content=<a href='/topic/show?id=16ce133504e' target=_blank style='color:#2F92EE;'>#Oncol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13350, encryptionId=16ce133504e, topicName=Oncol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b63894, createdName=minlingfeng, createdTime=Thu Oct 08 17:06:00 CST 2015, time=2015-10-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=16077, encodeId=f14c160e7b6, content=i 有, beContent=null, objectType=article, channel=null, level=null, likeNumber=137, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=cce01615276, createdName=Johnny1989, createdTime=Mon Feb 16 15:36:00 CST 2015, time=2015-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=15901, encodeId=d36d159019f, content=已阅, beContent=null, objectType=article, channel=null, level=null, likeNumber=92, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c68e1614119, createdName=windmilL1989, createdTime=Mon Feb 16 14:40:00 CST 2015, time=2015-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=15200, encodeId=880d152006a, content=类似研究会越来越多, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=175.8.168.**, createdTime=Thu Feb 05 22:54:00 CST 2015, time=2015-02-05, status=1, ipAttribution=)]
    2015-02-16 Johnny1989

    i 有

    0

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    2015-02-16 windmilL1989

    已阅

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1827997, encodeId=591e182e997c5, content=<a href='/topic/show?id=1b6210686b2' target=_blank style='color:#2F92EE;'>#Lancet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10686, encryptionId=1b6210686b2, topicName=Lancet)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Sun May 24 22:06:00 CST 2015, time=2015-05-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1864600, encodeId=49c918646004a, content=<a href='/topic/show?id=16ce133504e' target=_blank style='color:#2F92EE;'>#Oncol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13350, encryptionId=16ce133504e, topicName=Oncol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b63894, createdName=minlingfeng, createdTime=Thu Oct 08 17:06:00 CST 2015, time=2015-10-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=16077, encodeId=f14c160e7b6, content=i 有, beContent=null, objectType=article, channel=null, level=null, likeNumber=137, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=cce01615276, createdName=Johnny1989, createdTime=Mon Feb 16 15:36:00 CST 2015, time=2015-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=15901, encodeId=d36d159019f, content=已阅, beContent=null, objectType=article, channel=null, level=null, likeNumber=92, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c68e1614119, createdName=windmilL1989, createdTime=Mon Feb 16 14:40:00 CST 2015, time=2015-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=15200, encodeId=880d152006a, content=类似研究会越来越多, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=175.8.168.**, createdTime=Thu Feb 05 22:54:00 CST 2015, time=2015-02-05, status=1, ipAttribution=)]
    2015-02-05 175.8.168.**

    类似研究会越来越多

    0

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