Increased Serum Interleukin-2 Levels Are Associated with Abnormal Peripheral Blood Natural Killer Cell Levels in Patients with Active Rheumatoid Arthritis

Table 5

Relationship between serum IL-2 level and peripheral blood lymphocytes and CD4+ T cells.

	r
IL-2 vs. Total T	-0.084	0.392
IL-2 vs. Total T%	-0.111	0.259
IL-2 vs. Total B	-0.097	0.320
IL-2 vs. Total B%	-0.087	0.378
IL-2 vs. NK	0.230	0.018
IL-2 vs. NK%	0.268	0.006
IL-2 vs. CD4+	0.032	0.745
IL-2 vs. CD8+	-0.022	0.825
IL-2 vs. Th1	-0.024	0.804
IL-2 vs. Th2	0.108	0.270
IL-2 vs. Th17	0.153	0.117
IL-2 vs. Treg	-0.026	0.789
IL-2 vs. Th1/Th2	-0.149	0.128
IL-2 vs. Th17/Treg	0.239	0.013

Statistics: Spearman’s correlation tests. Abbreviations: RA: rheumatoid arthritis; Total T: total T cells; Total T%: T lymphocyte percentage; Total B: total B cells; Total B%: B lymphocyte percentage; NK: natural killer T cells; NK%: percentage of NK cells; CD4+: CD4+ T cells; CD8+: CD8+ T cells; Th1: T helper 1 cells; Th2: T helper 2 cells; Th17: T helper 17 cells; Treg: regulatory T cells; Th1/Th2: T helper 1 cell/T helper 2 cell ratio; Th17/Treg: T helper 17 cell/regulatory T cell ratio.