borderline significancep = 0.09
highly significantp = 0.09
In keeping with our finding of a lower mean percentage of T cells that were naïve in Malawians, we found that, based on CCR7 expression, Malawian adolescents had lower mean percentages of naïve CD4 + and CD8 + T cells than UK adolescents; this was highly significant for the CD8 population, although the difference in naïve CD4 + CCR7 + T cells was of only borderline significance for the 12–15 year old age group (p = 0.09) becoming more significant in the older (16–25 year old) age group (p = 0.003) (see Table 2 ).