[Table/Fig-2]:

Lymphocyte subsets in various subject groups

Variables	Healthy non-smokers (n=20)	Asymptomatic smokers (n=19)	COPD (n=21)	p value
CD3+	1424.9±352.2	1251.9±491.6	1154.3±582.2	0.207 NS
CD4+	832.5±220.7	745.7±313.8	652.7±340.5	0.161 NS
CD8+	500.4±191	426.9±193.2	424.7±264.3	0.470 NS
CD4+/CD8+	1.83±0.74	1.89±0.72	1.88±1.26	0.976 NS