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Table 4 Main outcomes and test results of new 15 patients with LTBI before and after treatment with isoniazid

From: Performance of 4 methods for screening of latent tuberculosis infection in patients with chronic inflammatory arthritis under TNFα inhibitors: a 24-month prospective study

Patient

Dx

TNF blocker

LT (years)

EPI

BCG

TST

Booster

ELISPOT

QFT

TST after

ELISPOT after

QFT after treatment

1

AS

ETA

3

+

10

NA

+

15

2

PsA

IFX

4

8

NA

+

+

7

+

+

3

AS

ETA

1

+

0

3

+

+

0

+

4*

AS

IFX

3

+

10

NA

+

+

0

+

+

5

AS

ADA

5

10

NA

+

10

Indet

6

RA

IFX

1

5

NA

+

+

20

+

+

7

RA

ETA

2

0

0

+

+

4

+

8

RA

ETA

1

+

+

16

NA

15

9

RA

IFX

2

+

9

NA

+

8

+

+

10

RA

ETA

3

+

15

NA

0

+

11

JIA

ETA

2

+

0

0

+

+

0

+

+

12

PsA

IFX

3

10

NA

8

Indet

13

AS

ADA

2

5

NA

5

14

RA

ETA

3

+

0

0

+

0

+

+

15

RA

ETA

1

+

+

4

10

+

+

4

+

+

  1. *Patient diagnosed with pulmonary TB before and after treatment
  2. RA, rheumatoid arthritis; AS, ankylosing spondylitis; PsA, psoriatic arthritis; JIA, juvenile idiopathic arthritis; TNF, tumor necrosis factor blockers; ADA, adalimumab; IFX, infliximab; ETA, etanercept; Dx, diagnosis; LT, length of treatment (in years); EPI, epidemiology; BCG, Bacillus Calmette-Guérin; TST, tuberculin skin test (in mm); QFT, Quantiferon, NA, not available; Indet, indeterminate