Table 3.

Means, medians, and 95th percentile reference ranges of WBC subset percentages for 142 HIV-negative adult Ethiopians

Subject group (n) and parameter% of:
GranulocytesMonocytesLymphocytesCD4 T cellsCD8 T cellsCD3 T cellsB-cellsNK cells
Male (92)
 Mean ± SD55.1 ± 12.36.7 ± 1.735.2 ± 10.338.1 ± 7.837.9 ± 10.077.6 ± 6.7 9.0 ± 3.513.9 ± 6.3
 Median56.06.035.538.035.078.09.013.0
 95% range31.6–78.74.0–10.716.0–55.424.7–53.723.0–60.762.0–90.73.0–18.04.0–29.0
Female (50)
 Mean ± SD54.3 ± 12.56.0 ± 2.036.4 ± 11.141.3 ± 6.134.4 ± 7.9 77.2 ± 7.010.2 ± 4.412.8 ± 5.7
 Median58.0 (0.89)a 6.0 (0.04)33.5 (0.71)41.0 (0.01)34.0 (0.08)78.5 (0.89)10.0 (0.11)11.0 (0.24)
 95% range23.0–73.03.0–12.119.8–64.129.0–57.917.4–50.158.3–87.03.3–27.75.3–29.7
  • a All values in parentheses are P values (Mann-Whitney U test) for comparison of medians for male and female subjects.