Conversely, CD4 <200/uL (OR: 2.94, 95% CI: 1.41–6.13, P = 0.004) and CD4 of 200–349/uL (OR: 3.24, 95% CI: 1.66–6.31, P = 0.001) were associated with increased anemia odds. This evidence concerns the gene CD4 and anemia.