The prevalence of lymphopenia was 0%, 0%, 4.2%, 11.9%, 42.9% and 22.2% for patients with CD4 count > 500, 350-500, 200-349, 100-199, 50-99 and < 50 cells/μl, respectively, (p = 0.000) (Table 6). Here, CD4 is linked to lymphopenia.