Table 2.

Means, medians, and 95th percentile reference intervals of CD3⁺, CD4⁺, CD8⁺, and CD4 to CD8 ratio of HIV negative adults who visited VCT, University of Gondar Hospital, Ethiopia, 2013.

Participants	Average CD3+/µL	Absolute CD4+/µL	Absolute CD8+/µL	CD4 : CD8 ratio
Male = (161)
Mean ± SD∗	1567 ± 562	759 ± 252	705 ± 370	1.3 ± 0.5
Median	1485	737	623	1.23
95% range	611–2974	265–1685	206–1733	0.4–2.8
Female (159)
Mean ± SD	1706 ± 547	882 ± 275	739 ± 342	1.34 ± 0.5
Median	1675	858	667	1.26
95% range	828–2824	387–1411	241–1667	0.6–2.5
Total (320)
Mean ± SD	1636 ± 559	820 ± 270	722 ± 356	1.3 ± 0.5
Median	1574	774	650	1.2
95% range	655–2823	321–1389	220–1664	0.5–2.52

^∗SD = standard deviation.