False discovery rate control is a recommended alternative to Bonferroni-type adjustments in health studies.

Abstract:

OBJECTIVES:Procedures for controlling the false positive rate when performing many hypothesis tests are commonplace in health and medical studies. Such procedures, most notably the Bonferroni adjustment, suffer from the problem that error rate control cannot be localized to individual tests, and that these procedures do not distinguish between exploratory and/or data-driven testing vs. hypothesis-driven testing. Instead, procedures derived from limiting false discovery rates may be a more appealing method to control error rates in multiple tests. STUDY DESIGN AND SETTING:Controlling the false positive rate can lead to philosophical inconsistencies that can negatively impact the practice of reporting statistically significant findings. We demonstrate that the false discovery rate approach can overcome these inconsistencies and illustrate its benefit through an application to two recent health studies. RESULTS:The false discovery rate approach is more powerful than methods like the Bonferroni procedure that control false positive rates. Controlling the false discovery rate in a study that arguably consisted of scientifically driven hypotheses found nearly as many significant results as without any adjustment, whereas the Bonferroni procedure found no significant results. CONCLUSION:Although still unfamiliar to many health researchers, the use of false discovery rate control in the context of multiple testing can provide a solid basis for drawing conclusions about statistical significance.

journal_name

J Clin Epidemiol

authors

Glickman ME,Rao SR,Schultz MR

doi

10.1016/j.jclinepi.2014.03.012

subject

Has Abstract

pub_date

2014-08-01 00:00:00

pages

850-7

issue

8

eissn

0895-4356

issn

1878-5921

pii

S0895-4356(14)00112-7

journal_volume

67

pub_type

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