BAL samples obtained and analyzed in the enrolled patients.

Footnote: ELISPOT: enzyme-linked immunosorbent spot; FACS: flow cytometric analysis; TB: tuberculosis; LTBI: latent tuberculosis infection; cell constraint: mononuclear cells from BAL 6; cell anergy: by ELISPOT, if the results are less than 20 SFC/well in the positive control; cell anergy: by FACS, if the results are less than 0.06% in the positive control; indeterminate: by ELISPOT, if the results are more than 10 SFC/well in the negative control.脚注：ELISPOT：酶联免疫斑点试验（enzyme-linked immunosorbent spot）；FACS：流式细胞术分析（flow cytometric analysis）；TB：结核病（tuberculosis）；LTBI：潜伏性结核感染（latent tuberculosis infection）；细胞限定条件：取自BAL 6的单个核细胞；细胞无反应性判定规则：采用ELISPOT检测时，若阳性对照孔结果低于20斑点形成细胞/孔（SFC/well），则判定为细胞无反应性；采用FACS检测时，若阳性对照结果低于0.06%，则判定为细胞无反应性；检测结果不确定判定规则：采用ELISPOT检测时，若阴性对照孔结果高于10 SFC/well，则判定为结果不确定。