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Table 1 TST and IGRA results

From: Using IFN-gamma release assay to confirm tuberculin skin test improves the screening of latent tuberculosis infection in Italian healthcare workers

 

IGRA

   

TST

Negative

n. (%)

Positive

n. (%)

Total

n. (%)

k

p-value

Negative

25 (15.0)

-

25 (15.0)

0.092b

0.002

Positive

106 (63.5)

36 (21.6)

142 (85.0)a

All

131 (78.4)

36 (21.6)

167 (100)

  
  1. aTwo IGRA-indeterminate subjects were excluded
  2. b95 % CI- 0.048–0.136
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Journal of Occupational Medicine and Toxicology

ISSN: 1745-6673