Table 1

Means and standard deviations of CD4+ and CD8+ cells by age group and gender

Gender and age group (no. of subjects)Mean no. of cells/μl (SD)CD4/CD8 ratio (SD)
CD4+CD8+
Women
    20–25 (50)783.75 (198.06)555.86 (180.09)1.40 (0.5)
    26–30 (50)766.94 (244.48)532.02 (191.67)1.43 (0.7)
    31–35 (50)851.00 (286.06)559.80 (192.11)1.52 (0.6)
    36–40 (50)871.28 (222.50)464.89 (168.47)1.87 (0.5)
    Total (200)818.24 (220.50)528.14 (188.37)1.5 (0.5)
Men
    20–25a (50)739.42 (211.48)513.25 (210.86)1.44 (0.5)
    26–30 (50)810.43 (280.88)607.08 (307.09)1.33 (0.6)
    31–35 (50)853.9 (249.05)497.56 (181.64)1.71 (0.4)
    36–40a (50)944.84 (323.8)621.07 (275.76)1.52 (0.5)
    Total (200)837.14 (260.80)559.74 (230.75)1.5 (0.4)
  • a Significant difference between these groups (P < 0.001).