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- W3135758431 abstract "Abstract High‐dimensional hypothesis testing is ubiquitous in the biomedical sciences, and informative covariates may be employed to improve power. The conditional false discovery rate (cFDR) is a widely used approach suited to the setting where the covariate is a set of p‐values for the equivalent hypotheses for a second trait. Although related to the Benjamini–Hochberg procedure, it does not permit any easy control of type‐1 error rate and existing methods are over‐conservative. We propose a new method for type‐1 error rate control based on identifying mappings from the unit square to the unit interval defined by the estimated cFDR and splitting observations so that each map is independent of the observations it is used to test. We also propose an adjustment to the existing cFDR estimator which further improves power. We show by simulation that the new method more than doubles potential improvement in power over unconditional analyses compared to existing methods. We demonstrate our method on transcriptome‐wide association studies and show that the method can be used in an iterative way, enabling the use of multiple covariates successively. Our methods substantially improve the power and applicability of cFDR analysis." @default.
- W3135758431 created "2021-03-15" @default.
- W3135758431 creator A5006577577 @default.
- W3135758431 creator A5074427299 @default.
- W3135758431 date "2021-03-07" @default.
- W3135758431 modified "2023-10-09" @default.
- W3135758431 title "Accurate error control in high‐dimensional association testing using conditional false discovery rates" @default.
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- W3135758431 doi "https://doi.org/10.1002/bimj.201900254" @default.
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- W3135758431 hasPublicationYear "2021" @default.
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