系统综述/Meta分析-选题注意事项

2018-03-06 MedSci MedSci原创

Meta分析的选题是一个很重要的问题。选题不当,容易导致研究缺乏价值、研究困难或无法完成。其注意事项如下: 1. 重要性 只有具有比较重要的临床意义的问题才适合作meta分析。Meta分析并不是一件很简单的事情,写一篇高质量的至少也要两个月以上的时间。如果分析的问题无关紧要,则得不偿失,也难以发表。 2.争议性 一般而言,具有争议性的问题最适合做meta分析。通过汇总多个研究结果,得到

Meta分析的选题是一个很重要的问题。选题不当,容易导致研究缺乏价值、研究困难或无法完成。其注意事项如下:

1. 重要性

只有具有比较重要的临床意义的问题才适合作meta分析。Meta分析并不是一件很简单的事情,写一篇高质量的至少也要两个月以上的时间。如果分析的问题无关紧要,则得不偿失,也难以发表。

2.争议性

一般而言,具有争议性的问题最适合做meta分析。通过汇总多个研究结果,得到总的更可靠的结论。怎样才知道哪些具有争议性呢?如果是某一领域的专家,自然会对本领域有哪些有争议性的问题比较清楚,如果是新手,则可以向该领域的专家请教,或者通过文献检索的方法知道哪些问题有争议性。如:欲研究肾移植领域哪些问题有争议性,则可以以“肾移植”,“争议”在CNKI上检索,或以renal transplantation, controversy; dispute等为关键词在PUBMED或其它医学数据库上进行检索,查到相关论文,详细阅读后即可知道哪些问题是有争议性的。

3.创新性

创新性指的是国内外还没有人做过这方面的meta分析。同样可以通过文献检索的方法来得知是否已经有人作过类似的meta分析。如打算作进食牛奶是否会增加前列腺癌发病风险的meta分析,则可以以“前列腺癌 乳制品 meta分析”或者“prostate cancer dairy product  meta-analysis”为关键词在相关数据库进行检索。结果发现国外已经有人做过了,那么这个课题就不太适合再做meta分析。最好的情况是别人没有进行过这方面的研究,如果已经有人做过了,但是,如果前面的研究质量不高,或者是前面的meta分析已经是很久以前做过的了,或者前面的研究指出有进一步研究的必要,那么也还是可以再做meta分析的。

由于现在许多适合做meta分析的课题国外已经有人做过了,所以在中文医学杂志上看到的多是“国人×××的meta分析”。但是,由于中文论文的质量及可靠性往往不高,因此影响了meta分析的质量。

4.问题清楚,回答明确

提出的问题应该是选择题式的,如:A和B两种疗法治疗C病哪种更好?而不应是开放式的,例如,乳腺癌应该采取什么样的治疗方法?正确的提法应该是:二期乳腺癌患者采用保乳手术和根治术,哪种方法更好?

5.有明确的效应指标

对于危险因素,可以以OR/RR值为效应指标,对于肿瘤的治疗,可以以×年生存率为效应指标等等。

6.有合适的原始论文

巧妇难为无米之炊,meta分析的“米”就是原始论文。原始论文要适合做meta分析,例如研究危险因素的就应当是病例对照研究和队列研究;要提供必要的信息,例如研究危险因素的就要能够提取出四格表资料;数目也不能太少,否则达不到汇总的效果,如果数目太多,当然没有什么不好,而且结果会更可靠,只是研究所需时间要增加而已。还有质量要高,设计要科学。

7.大小要适合

选题太大,纳入研究的文献太多,而且问题也不明确,研究难以完成。选题太少,缺乏推广应用的代表性,而且纳入研究的文献也太少,达不到汇总的效果。一般而言,纳入研究的文献以10-30篇比较适合做meta分析。

除了选题外,要完成一篇META分析还需要拟定研究计划、收集资料、根据入选标准选择合格的研究、复习每个研究并进行质量评估、提取信息,填写过录表,建立数据库、计算各独立研究的效应大小、异质性检验、敏感性分析、总结报告。等等!

梅斯医学为了让广大初学者可以快速的掌握Meta分析的要点,在2018年3月10-11日在上海梅斯总部特推出最新一期加强版的Meta分析初级班培训班,就是为了广大基础比较薄弱的临床医生解决一系列问题。授课老师是具有多年工作经验和大量案例操作的讲师构成,课程不仅教会您meta分析的流程和框架,还会教会您怎么去操作软件,怎么把数据收集起来、怎么录入数据、怎么去提取、偏移、分析等,老师同时也会针对每个人的问题做专门解答哦。

讲师简介:

MedSci讲师

毕业于Newcastle University of Northumbria。在MedSci医学部负责循证医学研究、Meta分析、统计分析等工作。曾从事多种学科(内科、外科、学、预防医学等)的循证医学研究,在英国进行过多项evidence-based practice 或evidence-based medicine的实践和理论研究。擅长多种统计分析和Meta分析的软件运用。在工作期间,参与多项临床数据分析以及meta分析工作,协助医生或药企开展多项临床研究项目并在ONCOTARGET、BMC、SCI REP、EUR J CANCER PREV等多本国际期刊上发表学术论文。并且多次参与循证医学、Meta分析、医学统计等培训课程。

培训课程:


本班特色:

本培训以“小班、实用”为最大特色,培训总人数限20人以下,小班辅导,确保授课质量;本次培训重在实战,通过实操,手把手指导,普及Meta分析学知识,以提高科研人员应用Meta分析软件的能力和实际应用能力。

适用人群:     

常年忙临床,科研基础薄弱,想在短时间内快速发SCI的医务人员;

想快速入门Meta分析的临床医生、硕博医学生;

从未接触过软件统计实操的临床医生、硕博医学生。

培训时间:2018.3.10-11

培训地点:上海·梅斯医学(上海市宜山路425号光启城办公楼3楼)

培训费用:

2018.03.05前到款3000

2018.03.05后到款3500

优惠政策:

三人成团,立减200/人。

四人以上,立减300/人。(优惠截止开班前两周)

单人报名3节以上,立减300/节

想就要做,不要再拖!

【注意事项】:

1.缴费时需提交报名注册信息,留下准确联系方式,便于工作人员发送练习素材或相关资料。

2.注册费优惠期限以到款时间为准

3.培训费用包含培训资料、午餐和茶点。酒店住宿、交通及其他用餐自理。

4.提供指定协议酒店,可与工作人员联系,费用自理。

5.培训期间,严禁各种途径的摄像和录音。违者必究。

付款方式:

银行汇款(收款单位账户信息)

户名:上海梅斯医药科技有限公司

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联系我们:

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    2018-11-22 叶蔷薇

    学习学习,谢谢分享

    0

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  3. [GetPortalCommentsPageByObjectIdResponse(id=353303, encodeId=2391353303d4, content=学习学习,谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83erjsOV82VchCbYrNfK91YYwYPlEFuSsUGrO3Pdrtv9QLjM84BnLibEL0bLLiaytsDVdH94ibInyRovCg/132, createdBy=e6882479224, createdName=叶蔷薇, createdTime=Thu Nov 22 03:33:21 CST 2018, time=2018-11-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1641154, encodeId=15a016411544e, content=<a href='/topic/show?id=053d948049e' target=_blank style='color:#2F92EE;'>#选题#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=94804, encryptionId=053d948049e, topicName=选题)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=723122754863, createdName=12498bd5m23暂无昵称, createdTime=Mon Feb 18 10:55:00 CST 2019, time=2019-02-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1906737, encodeId=3f4f1906e37ae, content=<a href='/topic/show?id=6440650062f' target=_blank style='color:#2F92EE;'>#注意事项#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=65006, encryptionId=6440650062f, topicName=注意事项)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e6ac207, createdName=xlwang2691, createdTime=Fri Aug 10 07:55:00 CST 2018, time=2018-08-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1896290, encodeId=76961896290a5, content=<a href='/topic/show?id=4a391158248' target=_blank style='color:#2F92EE;'>#MET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11582, encryptionId=4a391158248, topicName=MET)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=18fc139, createdName=一闲, createdTime=Fri Jan 18 13:55:00 CST 2019, time=2019-01-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1887853, encodeId=9ad1188e85394, content=<a href='/topic/show?id=d56611584ec' target=_blank style='color:#2F92EE;'>#Meta#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11584, encryptionId=d56611584ec, topicName=Meta)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d8f4110, createdName=guojianrong, createdTime=Sun Jul 08 03:55:00 CST 2018, time=2018-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1971848, encodeId=9f9319e1848da, content=<a href='/topic/show?id=8299e694421' target=_blank style='color:#2F92EE;'>#系统综述#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76944, encryptionId=8299e694421, topicName=系统综述)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c8f4467, createdName=AspirantSuo, createdTime=Mon Dec 03 18:55:00 CST 2018, time=2018-12-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=293987, encodeId=aba529398e29, content=学习学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzR8ylhYfiaoAUx2BsaYHVia1IKhG3Cg8CT84rBrn6iaVRkyAibJxBcLEXabOQ5p19vWgDe34ib5ErxNgx/0, createdBy=8a701629084, createdName=jihuaijun1112, createdTime=Thu Mar 08 00:17:32 CST 2018, time=2018-03-08, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=353303, encodeId=2391353303d4, content=学习学习,谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83erjsOV82VchCbYrNfK91YYwYPlEFuSsUGrO3Pdrtv9QLjM84BnLibEL0bLLiaytsDVdH94ibInyRovCg/132, createdBy=e6882479224, createdName=叶蔷薇, createdTime=Thu Nov 22 03:33:21 CST 2018, time=2018-11-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1641154, encodeId=15a016411544e, content=<a href='/topic/show?id=053d948049e' target=_blank style='color:#2F92EE;'>#选题#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=94804, encryptionId=053d948049e, topicName=选题)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=723122754863, createdName=12498bd5m23暂无昵称, createdTime=Mon Feb 18 10:55:00 CST 2019, time=2019-02-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1906737, encodeId=3f4f1906e37ae, content=<a href='/topic/show?id=6440650062f' target=_blank style='color:#2F92EE;'>#注意事项#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=65006, encryptionId=6440650062f, topicName=注意事项)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e6ac207, createdName=xlwang2691, createdTime=Fri Aug 10 07:55:00 CST 2018, time=2018-08-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1896290, encodeId=76961896290a5, content=<a href='/topic/show?id=4a391158248' target=_blank style='color:#2F92EE;'>#MET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11582, encryptionId=4a391158248, topicName=MET)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=18fc139, createdName=一闲, createdTime=Fri Jan 18 13:55:00 CST 2019, time=2019-01-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1887853, encodeId=9ad1188e85394, content=<a href='/topic/show?id=d56611584ec' target=_blank style='color:#2F92EE;'>#Meta#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11584, encryptionId=d56611584ec, topicName=Meta)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d8f4110, createdName=guojianrong, createdTime=Sun Jul 08 03:55:00 CST 2018, time=2018-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1971848, encodeId=9f9319e1848da, content=<a href='/topic/show?id=8299e694421' target=_blank style='color:#2F92EE;'>#系统综述#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76944, encryptionId=8299e694421, topicName=系统综述)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c8f4467, createdName=AspirantSuo, createdTime=Mon Dec 03 18:55:00 CST 2018, time=2018-12-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=293987, encodeId=aba529398e29, content=学习学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzR8ylhYfiaoAUx2BsaYHVia1IKhG3Cg8CT84rBrn6iaVRkyAibJxBcLEXabOQ5p19vWgDe34ib5ErxNgx/0, createdBy=8a701629084, createdName=jihuaijun1112, createdTime=Thu Mar 08 00:17:32 CST 2018, time=2018-03-08, status=1, ipAttribution=)]
    2019-01-18 一闲
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    2018-07-08 guojianrong
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    2018-03-08 jihuaijun1112

    学习学习学习

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