Figure 2From: The effect of ageing on human lymphocyte subsets: comparison of males and femalesDistribution of percentages of lymphocytes from individuals of different ages bearing CD4 (A) or CD8 (B) and the change in the CD4:CD8 ratio with aging (C). The linear regression results for all individuals (black line), males (blue line) and females (pink line) and the relevant P values are shown on the graphs. n.s. = not significant.Back to article page