Stanley I Letovsky, Xia Cao, Jill A Hollenbach, Steven J Mack, Martin Maiers
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Association between HLA genetics and SARS-CoV-2 infection in a large real-world cohort.
Genetic variation in the human leukocyte antigen (HLA) region is thought to influence susceptibility to and severity of a variety of infectious diseases. Several studies have explored a possible relationship between HLA genetics and SARS-CoV-2 infection, although mixed results, small sample sizes, and difficulty controlling for exposure risk have made it difficult to draw firm conclusions. Here, a dataset of 419,234 subjects with HLA genotype data and COVID-19 PCR test results was studied. A baseline analysis was performed to examine the association of non-HLA factors on COVID-19 positivity. Then, multivariate logistic regressions, incorporating single and paired HLA alleles, were performed and then corrected for significant factors from the baseline analysis. Proxies for socioeconomic status and exposure risk were significantly associated with COVID-19 positivity across all ancestry groups studied. Forty-one single HLA alleles displayed significant association with COVID-19 positivity; after controlling for socioeconomic status and exposure risk, only eight significant associations remained. Additionally, two HLA allele pairs were associated with test positivity after correction. Of all variables, socioeconomic status showed the greatest effect size. The results from this study suggest that many, if not all, of the reported associations between HLA alleles and SARS-CoV-2 infection may be spurious, owing to confounding factors.
期刊介绍:
Genes & Immunity emphasizes studies investigating how genetic, genomic and functional variations affect immune cells and the immune system, and associated processes in the regulation of health and disease. It further highlights articles on the transcriptional and posttranslational control of gene products involved in signaling pathways regulating immune cells, and protective and destructive immune responses.