Using group testing in a two-phase epidemiologic design to identify the effects of a large number of antibody reactions on disease risk.

BMC Med Res Methodol

Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Room SG/7E146, Rockville, MD, 20850, USA.

Published: December 2022

Background: The role of immunological responses to exposed bacteria on disease incidence is increasingly under investigation. With many bacterial species, and many potential antibody reactions to a particular species, the large number of assays required for this type of discovery can make it prohibitively expensive. We propose a two-phase group testing design to more efficiently screen numerous antibody effects in a case-control setting.

Methods: Phase 1 uses group testing to select antibodies that are differentially expressed between cases and controls. The selected antibodies go on to Phase 2 individual testing.

Results: We evaluate the two-phase group testing design through simulations and example data and find that it substantially reduces the number of assays required relative to standard case-control and group testing designs, while maintaining similar statistical properties.

Conclusion: The proposed two-phase group testing design can dramatically reduce the number of assays required, while providing comparable results to a case-control design.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9756457PMC
http://dx.doi.org/10.1186/s12874-022-01798-0DOI Listing

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