In binary logistic regression, gender and age group do not show any significant association with anemia (P > 0.05), but WHO HIV/AIDS stage II (COR, 95% CI: 0.5 (0.1, 0.92), P < 0.05), absence of HAART (COR, 95% CI: 2.1 (1.1, 2.7), P < 0.01), rural residence (COR, 95% CI: 0.4 (0.1, 0.9), P < 0.05), primary school (COR, 95% CI: 3.2 (1.1, 10), P < 0.05), CD4 T cell count < 350 cells/μL (COR, 95% CI: 2.5 (1.01, 4.1), P < 0.01), and infection with intestinal parasites (COR, 95% CI: 4.5 (1.2, 5.3), P < 0.01) showed significant association with the presence of anemia (Table 3). Here, CD4 is linked to anemia (phenotype).