The PD-1 with PD-L1 Axis Is Pertinent with the Immune Modulation of Atrial Fibrillation by Regulating T Cell Excitation and Promoting the Secretion of Inflammatory Factors

Table 2

The expression changes of CD69 and HLA-DR on CD3+ T lymphocytes in external blood of two groups .

Group	Cases	CD69	HLA-DR
AF	45
Control	45
value		8.199	6.063
value		<0.001	<0.001