4.5 Article

Vaccine adverse event enrichment tests

期刊

STATISTICS IN MEDICINE
卷 40, 期 19, 页码 4269-4278

出版社

WILEY
DOI: 10.1002/sim.9027

关键词

enrichment analysis; MedDRA; vaccine adverse event; vaccine safety; VAERS

资金

  1. National Institute Of Allergy And Infectious Diseases of the National Institutes of Health [R01AI158543]

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The study introduces meaningful structures to the Vaccine Adverse Event Reporting System (VAERS) database by connecting similar Adverse Events (AEs). Rigorous statistical methods were developed to identify interesting AE groups through AE enrichment analysis. The proposed methods extend gene enrichment tests to perform AE enrichment analysis while incorporating the special features of AE data.
Vaccination safety is critical for individual and public health. Many existing methods have been used to conduct safety studies with the VAERS (Vaccine Adverse Event Reporting System) database. However, these methods frequently identify many adverse event (AE) signals and they are often hard to interpret in a biological context. The AE ontology introduces biologically meaningful structures to the Vaccine Adverse Event Reporting System (VAERS) database by connecting similar AEs, which provides meaningful interpretation for the underlying safety issues. In this paper, we develop rigorous statistical methods to identify interesting AE groups by performing AE enrichment analysis. We extend existing gene enrichment tests to perform AE enrichment analysis, while incorporating the special features of the AE data. The proposed methods were evaluated using simulation studies and were further illustrated on two studies using VAERS data. The proposed methods were implemented in R package AEenrich and can be installed from the Comprehensive R Archive Network, CRAN, and source code are available at .

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