Figure 4From: Expansion of CD4+CD25+helper T cells without regulatory function in smoking and COPDFlow cytometry analysis of CD127 expression on BAL T cells from never-smokers (NS), smokers with normal lung function (S) and COPD. The combined CD127- and CD127dim populations are given as percent of gated CD25+CD4+ cells. Among the COPD group, ● indicates ex-smokers and Δ smokers. Significance levels are noted as ** p < 0.01 Data are given as median and IQR.Back to article page