The positive reactions of ICT TB in non tuberculosis were caused mainly by antigens 4,5, and if antigens 4,5 were excluded, the specificity of ICT TB card rose to 98.9%.

• 非结核病例中的ICT?TB阳性主要由抗原4、5 阳性所致，如果去除抗原4 、5，那么ICT?TB诊断结核病的特异性将提高到98.；9%25 。