Table. 2—

Sensitivity and specificity of nucleic acid amplification methods in different samples#

AmplicorAMTDReal-time PCRBDProbeTec+
SensitivitySpecificitySensitivitySpecificitySensitivitySpecificitySensitivitySpecificity
Smear positive pulmonary97>9592–100>957810090–10092
Smear negative pulmonary40–73>9540–93>957810033–10083–97
Extrapulmonary27–98>9593>958010076>90
  • Data are presented as %. AMTD: amplified Mycobacterium tuberculosis direct test. #: adapted from references 22 and 91; : Amplicor M. tuberculosis test; +: amplified M. tuberculosis direct test.