Table 2

Various study results according to various sampling methods

TNBBronchoscopySurgery*Sputum study*
Histopathology (H&E slides)
 Mycobacterial infection28NA6NA
 Non-specific benign19NA0NA
TB-PCR
 Positive101020
 Negative83132
 Not done291117
Culture
 Positive5 (3 TB, 2 NTM infection)18 (13 TB, 5 NTM infection)1 (TB)3 (1 TB, 2 NTM infection)
 Negative172323
 Not done251313
 Total4742619
  • *Excluding patients with positive TB-PCR or culture results on TNB or bronchoscopy.

  • NA, not available; NTM, non-tuberculous mycobacterial infection; TB, tuberculosis; TNB, transthoracic needle biopsy.