Comparison of absolute numbers of effector memory (TEM) T cells in LTRs.

<p>The CD4⁺ (A) and CD8⁺ (B) TEM cells were measured in peripheral blood of rejection-free (Free) and lung transplant patients suffering an acute rejection episode (AR). Medians and interquartile ranges are depicted and compared using Mann-Whitney U test. The cut-off (C.O.) value of 185 CD8⁺ TEM cells/mm³ discriminate between Free and AR lung transplant recipients.