Table 4.

TTD of M. tuberculosis, MAC, and all mycobacteria in BACTEC MGIT 960 and BACTEC 460 TB systems

Culture systemTTD, days (total no. of isolates detected) for:
M. tuberculosiscomplexMACAll mycobacteria
NonpairedaPairedb, cNonpairedaPairedb, dNonpairedaPairedb
BACTEC 96014.4 (102)14.4 (92)10.0 (147)9.8 (101)11.8 (289)11.1 (213)
BACTEC 46015.2 (119)13.2 (92)10.4 (123)8.4 (101)12.5 (271)11.3 (213)
  • a Total for isolates recovered with either BACTEC MGIT 960 or BACTEC 460 TB system.

  • b Total for isolates recovered with both systems.

  • c P = 0.055, not significant.

  • d P = 0.001.