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Table 4 Immunological parameters showing an age-related increase

From: Slower immune system aging in women versus men in the Japanese population

Immunological parameters Male (N = 162) Female (N = 194) Gender difference
Slope Intercept R p-value Slope Intercept R p-value p-value
(a) CD4 + T cells 23.28 −313 <0.001 0.990 16.92 77 0.114 0.107 0.004
(b) CD4/CD8 ratio 0.087 −2.260 0.316 <0.001 0.064 −0.713 0.452 <0.001 0.001
(c) Memory T cells 12.35 −141 0.114 0.153 10.11 −91 0.253 <0.001 <0.001
(d) CD4 + CD25 + T cells 1.830 −47 0.077 0.379 1.602 −33 0.100 0.233 NS
(e) NK cells 17.41 −449 0.105 0.194 11.94 −186 0.268 <0.001 0.001
  1. ※: Number/mm3. R: Correlation coefficient. NS: not significant.