Of note, there was a higher frequency of HIV viremia in the tumor group compared with the non-tumor group (37.3% vs. 9.0%, P < 0.001; Table 1), which was associated with a significant difference in CD4+ T-cell counts (median [interquartile range], 369 [158.3–543.5] cells/μL for the tumor group vs. 549 [398.5–717.5] cells/μL for the non-tumor group, P < 0.001; Table 1) and CD4/CD8 ratios (0.502 [0.201–0929] vs. 0.770 [0.561–1.144], respectively, P < 0.001; Table 1). The gene discussed is CD4; the disease is neoplasm.