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Table 4 Bronchoscopic findings in 54 patients confirmed to have active PTB

From: Fiberoptic bronchoscopy for the rapid diagnosis of smear-negative pulmonary tuberculosis

  TB Culture confirmed Biopsy confirmed
  N = 54 N = 48 N = 6
Bronchial washing culture 42/54 (77.8) 42/48 (87.5) 0/6 (0.0)
Bronchial washing AFB smear 14/54 (25.9) 12/48 (25.0) 2/6 (33.3)
Bronchial washing MTB-PCR 33/54 (61.1) 32/48 (66.7) 1/6 (16.7)
Bronchoscopic biopsy (TBB + bronchial biopsy) 22/23 (95.7) 16/17 (94.1) 6/6 (100.0)
Bronchial washing AFB smear + MTB-PCR + bronchoscopic biopsy 41/54 (75.9) 35/48 (72.9) 6/6 (100.0)
  1. Definition of abbreviations: PTB = pulmonary tuberculosis, TB = tuberculosis, AFB = acid-fast bacilli, MTB = mycobacterial tuberculosis, PCR = polymerase chain. reaction, TBB = transbronchial lung biopsy.
  2. *Numbers of patients with positive results in each test/total numbers of patients who underwent each test (%).