TABLE 3.

Distribution of concordant and discordant results for TST and the QFT-GIT test

Parameter	No. of subjects	% of subjects with TST/QFT-GIT results that werea:				Concordant vs discordant P value
		Concordant		Discordant
		Neg/Neg	Pos/Pos	Pos/Neg	Neg/Pos
Gender
Male	607	79.4	2.6	17.6	0.3	0.535
Female	66	77.3	4.5	18.2	0.0
TB incidence in birth country cases
<10	660	79.7	2.6	17.4	0.3	0.297
10-49	2	100.0	0.0	0.0	0.0
50-99	4	50.0	0.0	50.0	0.0
100-199	5	40.0	20.0	40.0	0.0
≥200	5	60.0	20.0	20.0	0.0
Have visited tropics
No	531	80.0	2.4	17.1	0.4	0.363
Yes	141	76.6	4.3	19.1	0.0
Contact with TB-infected individuals
No	648	79.8	2.5	17.4	0.3	0.226
Yes	28	64.3	10.7	25.0	0.0
Treated for TB or LTBI
No	669	79.2	2.5	17.9	0.3	0.247
Yes	7	71.4	28.6	0.0	0.0
History of positive TST result
No	645	81.9	1.9	16.1	0.3	0.000
Yes	27	25.9	22.2	51.9	0.0
Went on mission
No	18	38.9	11.1	50.0	0.0	0.000
Yes	498	77.1	2.6	19.9	0.4
Recruits	145	93.8	2.8	3.4	0.0
Location of mission
Bosnia	36	44.4	5.6	50.0	0.0	0.000
Kyrgystan	21	76.2	0.0	23.8	0.0
Iraq	165	83.6	2.4	12.7	1.2
Afghanistan	269	77.7	2.6	19.7	0.0
Duration mission (mo)
0-4	308	81.2	2.3	16.2	0.0	0.032
4-6	176	72.2	2.3	25.0	0.6
>6	16	56.3	12.5	31.3	0.0

^aNeg, negative; Pos, positive.