Sequential methods for random-effects meta-analysis.
Sequential methods for random-effects meta-analysis.
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DOI:
10.1002/sim.4088
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发表时间:
2011-04-30
影响因子:
2
通讯作者:
Simmonds, Mark
中科院分区:
文献类型:
--
作者:
Higgins, Julian P. T.;Whitehead, Anne;Simmonds, Mark
关键词:
Although meta-analyses are typically viewed as retrospective activities, they are increasingly being applied prospectively to provide up-to-date evidence on specific research questions. When meta-analyses are updated account should be taken of the possibility of false-positive findings due to repeated significance tests. We discuss the use of sequential methods for meta-analyses that incorporate random effects to allow for heterogeneity across studies. We propose a method that uses an approximate semi-Bayes procedure to update evidence on the among-study variance, starting with an informative prior distribution that might be based on findings from previous meta-analyses. We compare our methods with other approaches, including the traditional method of cumulative meta-analysis, in a simulation study and observe that it has Type I and Type II error rates close to the nominal level. We illustrate the method using an example in the treatment of bleeding peptic ulcers. Copyright © 2010 John Wiley & Sons, Ltd.
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影响因子:
2
作者:
Bradburn, Michael J.;Deeks, Jonathan J.;Localio, A. Russell
通讯作者:
Localio, A. Russell
影响因子:
1.9
作者:
OBRIEN, PC;FLEMING, TR
通讯作者:
FLEMING, TR
影响因子:
2
作者:
Harbord, Roger M.;Egger, Matthias;Sterne, Jonathan A. C.
通讯作者:
Sterne, Jonathan A. C.
影响因子:
5.4
作者:
Bollen, Casper W.;Uiterwaal, Cuno S. P. M.;van der Tweel, Ingeborg
通讯作者:
van der Tweel, Ingeborg
DOI:
10.1016/0197-2456(86)90046-2
发表时间:
1986-09-01
期刊:
CONTROLLED CLINICAL TRIALS
影响因子:
--
作者:
DERSIMONIAN, R;LAIRD, N
通讯作者:
LAIRD, N