However, meta-regression showed that the association between HIV and mortality from COVID-19 was unaffected by age (p = 0.208), gender (p = 0.608) (see Figure 3a), Black ethnicity (p = 0.389), CD4 cell count of <200 cells/μL (p = 0.353) (see Figure 3b) or ART (p = 0.647) (see Figure 3c). The gene discussed is CD4; the disease is COVID-19.