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Table 2 Distribution of missed probe types across clinical factors of RR-TB patients (n = 100)

From: Does Xpert® MTB/RIF assay give rifampicin resistance results without identified mutation? Review of cases from Addis Ababa, Ethiopia

CharacteristicsMissed probes types, NNumberProportion
BDENo missed probe
Treatment history
 New173755055.6%
 Relapse225112932.2%
 Failure777.8%
 A loss to follow up1344.4%
 Total33348690100.0%
Specimen type
 Sputum145166262.0%
 Extrapulmonary26303838.0%)
 Total310816100100.0%
Extrapulmonary samples
 Lymph node22151950.0%
 Pleural fluid23513.2%
 Pus4410.5%
 Abscess4410.5%
 Ascetic fluid338.0%
 Unspecified body fluid1125.2%
 BAL112.6%
 Total263038100.0%
GeneXpert semi-quantification of MTB
 Very low1131414%
 Low13192323%
 Medium152913636%
 High122222727%
 Total310816100100%
  1. “-” = Not available, N=Number