Fig. 1

Differences in the proportions of peripheral blood CD4⁺T cells, CD8⁺T cells and CD56⁺NK lymphocyte subsets between the tuberculosis (TB) group, silicosis group (SILs), silicosis combined with latent tuberculosis infection group (SILs&LTBI) and pulmonary tuberculosis combined with silicosis (TB&SILs) group. a Statistical analysis of the proportions of CD4⁺T cells from the peripheral blood of patients in the TB group, SILs group, SILs&LTBI group and TB&SILs group; b statistical analysis of the proportions of CD8⁺T cells from the peripheral blood of patients in the TB group, SILs group, SILs&LTBI group and TB&SILs group; c statistical analysis of the proportions of CD56⁺T cells from the peripheral blood of patients in the TB group, SILs group, SILs&LTBI group and TB&SILs group *p < 0.05; **p < 0.01; ***p < 0.001