Table 3.

Comparison of lymphocyte subsets between the age groups <40 and ≥40 years of age

Lymphocyte subset	Result for group:		P valuea
	<40 yr of age (n = 155 [69 males, 86 females])	≥40 yr of age (n = 118 [81 males, 37 females])
No. of CD3+ cells/μl (%)	744–2,369 (54.72–84.50)	659–2,093 (56.26–84.06)	0.004* (0.003*)
No. of CD4+ cells/μl (%)	404–1,263 (27.41–51.78)	395–1,396 (30.07–55.72)	0.706 (0.019*)
No. of CD8+ cells/μl (%)	267–1,065 (18.15–41.19)	218–926 (14.60–43.46)	0.000* (0.000*)
CD4/CD8 cell ratio	0.70–2.56	0.71–3.57	0.000*
No. of CD19+ cells/μl (%)	127–644 (7.08–26.12)	96–683 (7.34–25.72)	0.640 (0.476)
No. of CD56+ cells/μl (%)	57–611 (3.67–25.70)	86–607 (3.40–28.78)	0.473 (0.015*)

^a*, statistically significant at P < 0.05.