In our integrated analyses, we also revealed other five candidate genes potentially involved in COVID-19, including GADD45G, PGAP2, CSMD1, KNDC1, and STK32C. In the sex-biased DGE analysis, we revealed that the expression of GADD45G and PGAP2 are specifically higher across multiple GTEx tissues of males and females. This evidence concerns the gene CSMD1 and COVID-19.