TABLE 4.

Multivariate logistic regression for positive T-SPOT.TB and TST results (n = 390)^a

Variable	T-SPOT.TB			TST
	% Positive (n)	Crude OR (95% CI)	Adjusted OR (95% CI)	% Positive (n)	Crude OR (95% CI)	Adjusted OR (95% CI)
Age	NAc	1.04 (1.02-1.06)*	1.04 (1.01-1.06)*	NA	1.06 (1.03-1.10)*	1.06 (1.02-1.09)*
Gender
Male	20.3 (15)	1.00	1.00	93.9 (31)	1.00	1.00
Female	79.7 (59)	1.57 (0.82-3.01)	1.54 (0.76-3.12)	6.1 (2)	0.34 (0.08-1.46)	0.23 (0.04-1.24)
Ethnicity
Caucasian	29.7 (22)	1.00	1.00	21.2 (7)	1.00	1.00
African-American	43.2 (32)	1.18 (0.65-2.15)	1.63 (0.83-3.20)	45.5 (15)	1.76 (0.70-4.45)	2.84 (0.97-8.28)
Hispanic	32.4 (20)	1.36 (0.69-2.66)	1.73 (0.76-3.94)	33.3 (11)	2.38 (0.88-6.38)	1.69 (0.46-6.18)
Birth country
United States	82.4 (61)	1.00	1.00	63.6 (21)	1.00	1.00
Other	17.6 (13)	2.11 (1.04-4.29)*	2.28 (0.92-5.69)	36.4 (12)	6.23 (2.79-13.89)*	6.61 (1.98-22.01)*
Prior incarceration
No	10.8 (8)	1.00	1.00	24.2 (8)	1.00	1.00
Yes	89.2 (66)	1.13 (0.50-2.53)	1.32 (0.53-3.28)	75.8 (25)	0.37 (0.16-0.88)*	0.41 (0.14-1.19)
Intravenous drug use
No	77.0 (57)	1.00	1.00	81.8 (27)	1.00	1.00
Yes	23.0 (17)	2.65 (1.38-5.09)*	2.92 (1.36-6.27)*	18.2 (6)	1.62 (0.63-4.16)	2.54 (0.78-8.27)
Lived in shelterb
No	74.3 (55)	1.00	1.00	72.7 (24)	1.00	1.00
Yes	25.7 (19)	2.14 (1.16-3.94)*	1.74 (0.87-3.50)	27.3 (9)	2.10 (0.93-4.77)	2.78 (1.00-7.72)
HIV status
Negative	94.6 (35)	1.00	1.00	86.4 (19)	1.00	1.00
Positive	5.4 (2)	0.24 (0.03-1.84)	0.16 (0.02-1.33)	13.6 (3)	0.001 (0.00-99.9)	0.001 (0.00-99.9)

^a*, P < 0.05.

^bHistory of living in nursing homes, homeless shelters, drug rehabilitation centers, or “bunkhouses.”

^cNA, not applicable.