Test-statistic inflation in methylome-wide association studies.
Test-statistic inflation in methylome-wide association studies.
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DOI:
10.1080/15592294.2020.1758382
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发表时间:
2020-11
期刊:
影响因子:
3.7
通讯作者:
van den Oord EJCG
中科院分区:
文献类型:
--
作者:
Guintivano J;Shabalin AA;Chan RF;Rubinow DR;Sullivan PF;Meltzer-Brody S;Aberg KA;van den Oord EJCG
Recent years have seen a surge of methylome-wide association studies (MWAS). We observed that many of these studies suffer from test statistic inflation that is most likely caused by commonly used quality control (QC) pipelines not going far enough to remove technical artefacts. To support this claim, we reanalysed GEO datasets with an improved QC pipeline that reduced test-statistic inflation parameter lambda from the original mean/median of 20.16/15.17 to 3.07/1.14. Furthermore, the mean/median number of methylome-wide significant findings was reduced by 65,688/57,805 loci after more thorough QC. To avoid such false positives we argue for more extensive QC and that reporting the test-statistic inflation parameter lambda become standard for all MWAS allowing readers to better assess the risk of false discoveries.
影响因子:
6.9
作者:
Guintivano J;Sullivan PF;Stuebe AM;Penders T;Thorp J;Rubinow DR;Meltzer-Brody S
通讯作者:
Meltzer-Brody S
影响因子:
5.2
作者:
Yang, Jian;Weedon, Michael N.;Visscher, Peter M.
通讯作者:
Visscher, Peter M.
影响因子:
5.8
作者:
Shabalin, Andrey A.;Hattab, Mohammad W.;van den Oord, Edwin J. C. G.
通讯作者:
van den Oord, Edwin J. C. G.