Targeted Screening for Latent TB Infection prior to Biologic Therapy to Improve Patient Safety and Reduce Costs: A Prospective Observational Study

Table 2

The patient characteristics and results of the test performed.

Characteristic	𝑁	%
Gender
Female	45	34.6
Male	85	65.4
Age (years)
15–34	21	16.2
35–54	47	36.2
55–74	53	40.8
>75	9	6.9
Place of birth
UK	124	95.4
Outside UK	6	4.6
Ethnic origin
White	124	95.4
Black	1	0.8
ISC	3	2.3
Other	2	1.5
BCG vaccination
Present	100	76.9
Absent	27	20.8
Uncertain	3	2.3
Self-reported history of TB contact
Yes	21	16.2
No	109	83.8
TSPOT result
Positive	5	3.8
Negative	125	96.2
Chest X-ray
Normal	126	96.9
Abnormal	4	3.1

(𝑛=130) (ISC: Indian subcontinent).