Table 6-1. Analysis of peripheral blood cells from young and aged macaques ($\overline{X}\pm \text{s}$, × 10⁹/L).

	n	Leukocyte	Neutrophil granulocyte	Lymphocyte	Monocyte
Young group	3	8.1 ± 1.5	3.5 ± 0.7	4.3 ± 1.5	0.17 ± 0.05
Aged group	3	12.4 ± 1.6*	3.9 ± 1.3	8.2 ± 1.5*	0.24 ± 0.05

Note: ^*Compared with the juvenile group, P < 0.05. The results suggest that elderly macaques may be in a state of chronic inflammation.