Distribution and clinical significance of circulating CD8+CD28− regulatory T cells in the peripheral blood of patients with pulmonary tuberculosis

Table 1 Clinical characteristics of the study subjects

	HCs group	PTB group
Cases	43	98
Age (years)	42.58 ± 1.651	48.83 ± 1.951
Male/female	28/15	65/33
PTB progression(stage I/stage II)	NA	57/41
Bacillary load in sputum of PTB patients(+ / + + / + + + + / + + + +)	NA	19/25/26/28

Data are presented as number or mean ± SEM. PTB, Pulmonary tuberculosis; NA, not applicable

ISSN: 1471-2466