CD4 and anemia: The present study confirmed these findings, however we report much larger increased risks of anemia (HR = 8.40, 95%CI: 6.85, 10.51) and severe anemia (HR = 15.53, 95%CI:11.56–20.92) among PLWH with CD4 cell counts < 100 cells/mm3 than have been previously reported [20–24].