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Table 1 Initial tuberculosis diagnostics

From: High diagnostic yield of endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) in the diagnosis of adolescent pulmonary tuberculosis

 

n performed

n positive

n negative

%

Chest X-ray or CT-scan abnormalities

34

33

1

97.1

 Chest X-ray only

12

12

0

100

 Chest CT-scan

22

21

1

95.5

Positive TST

9

9

0

100.0

Positive QFT

19

18

1

94.7

Positive ELISpot

12

10

2

83.3

  1. Each patient tested positive in at least one immunodiagnostic test, except patient Nr. 29, who had a negative QFT. For this patient, further diagnostics were pursued based upon typical radiological findings. In the end, this patient was diagnosed with TB based upon a positive MTb culture from pleural effusion. Three patients (Nr. 18, 22, 25) tested positive in two tests. In two patients (Nr. 5 and 26), the test results were incongruent. Details on clinical and radiologic characteristics of all patients included are displayed in Table S1. Percentage figures in the Table 1 are rounded
  2. Abbreviations: ELISpot enzyme-linked-immuno-spot assay, HR-CT high-resolution computer tomography, QFT QuantiFERON-TB® Gold Plus, MTb M. tuberculosis, TST tuberculin skin test