Table 1

Mean proportion of "truly naïve" T cells in Malawian and UK adolescents (aged 12–15 years).


Malawi (n = 19)
UK (n = 26)
p (difference)

% CD4+ "truly naïve" (min-max)
50 (27–70)
SD = 11.7
72 (55–87)
SD = 7.6
<0.001

% CD8+ "truly naïve" (min max)
47 (18–71)
SD = 12.9
56 (28–80)
SD = 12.7
0.019

Ben-Smith et al. BMC Infectious Diseases 2008 8:139   doi:10.1186/1471-2334-8-139