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Table 2 Comparison of laboratory processing times using the GenoType® MTBDRplus assay and the MGIT BACTEC 960 for drug-susceptibility testing.

From: Validation of the GenoType® MTBDRplus assay for detection of MDR-TB in a public health laboratory in Thailand

  MGIT BACTEC 960 GenoType ® MTBDR plus
Specimen Type Culture Result to Identification
median days (IQR)
DST Initiation to DST Result
median days (IQR)
Total Time from Culture to DST
median days (IQR)
DNA Extraction to DST Result
median days (IQR)
Total Time from Culture Result to DST
median days (IQR)
Direct Sputum + 15 (12 - 19) 9 (7 - 11) 24.5 (21 - 29) 3 (2 - 5) N/A
Stored
Isolate
14 (12.5 - 19.5) 9 (7 - 12) 25 (21 - 28.5) 2 (1.5 - 2) 16 (14 - 21)
All Local Specimens 15 (12 - 19) 9 (7 - 11) 25 (21 - 29) 2 (1 - 3) 5 (3 - 9)*
  1. IQR = interquartile range (25th and 75th percentile)
  2. * Pooled for all specimens: for direct sputum AFB+ time from DNA extraction to DST result; for isolates time from culture result to DST result.