Table 3

Univariate and multivariate analyses of factors to predict positive culture of Mycobacterium tuberculosis in patients undergoing endobronchial ultrasound-guided transbronchial needle aspiration

CovariateUnadjusted OR of positive cultureUnivariate p valueAdjusted OR of positive culture (95% CI)Multivariate p value
African or Asian1.3820.410
Lymph node >20 mm0.4570.0190.905 (0.361 to 2.264)0.832
Station 7 lymph node1.0510.879
Abnormal lung parenchyma1.1700.641
Multiple lymph nodes sampled1.7310.0971.921 (0.965 to 3.823)0.063
Number of needle passes1.2760.079
Pathology showing necrosis (grades I or III*)1.1380.6892.254 (0.870 to 5.839)0.094
Lumph node >20 mm/necrosis interaction0.292 (0.075 to 1.128)0.074
  • * Grade I, epithelioid granulomatous reaction with caseation; grade III, granulomatous reaction with necrosis.