CD4 and cardiovascular disorder: CD3+CD4+, 0.5649 ± 0.2487 at cardiovascular disease vs 0.7695 ± 0.3274 at no cardiovascular disease, p = 0.001, and CD3+CD4+ αβ T cells, 0.5634 ± 0.2449 vs 0.7802 ± 0.3292, p = 0.001.