TABLE 3

Number and percentage of contacts with positive results if risk factors for latent tuberculosis are considered to contribute in differing proportions

		Positive results if known prior LTBI risk factors attributable in differing proportions
	Total contacts identified	0%		25%		50%		75%		100%
	Total contacts identified	n	%	n	%	n	%	n	%	n	%
McFarland et al. [16]	343	8	2.3	6	1.7	4	1.2	2	0.6	0	0.0
Driver et al. [6]	274	23	8.4	18	6.6	13	4.7	7	2.6	2	0.7
CDC 1995 [23]	92	10	10.9	8	8.7	5	5.4	3	3.3	0	0.0
CDC 1995 [23]	345	14	4.1	11	3.2	7	2.0	4	1.2	0	0.0
Kenyon [7]	1042	29	2.8	24	2.3	18	1.7	13	1.2	7	0.7
Miller et al. [17]	219	34	15.5	26	11.9	18	8.2	10	4.6	2	0.9
Moore et al. [26]	203	5	2.5	4	2.0	3	1.5	1	0.5	0	0.0
Beller [22]	12	0	0	0	0.0	0	0.0	0	0.0	0	0.0
Parmet [28]	48	0	0	0	0.0	0	0.0	0	0.0	0	0.0
Vassiloyanakopoulos et al. [30]	144	1	0.7	0	0.0	0	0.0	0	0.0	0	0.0
Wang [19]	308	173	56.2	131	42.5	88	28.6	46	14.9	3	1.0
Whitlock et al. [20]	238	24	10.1	18	7.6	12	5.0	6	2.5	0	0.0
Chemardin et al. [13]	11	0	0	0	0.0	0	0.0	0	0.0	0	0.0
*Abubakar et al.* [3]	247	0	0	0	0.0	0	0.0	0	0.0	0	0.0
Kornylo-Duong et al. [15]	131	16	12.2	12	9.2	8	6.1	4	3.1	0	0.0
Marienau et al. [25]	4550	182	4	140	3.1	97	2.1	55	1.2	12	0.3
*Kim et al.* [14]	15	0	0	0	0.0	0	0.0	0	0.0	0	0.0
Thibeault et al. [18]	56	6	10.7	5	8.9	3	5.4	2	3.6	0	0.0
Flanagan et al. [24]	232	4	1.7	3	1.3	2	0.9	1	0.4	0	0.0
Ahmadi et al. [31]	6275	78	1.2	59	0.9	41	0.7	22	0.4	3	0.0
An der Heiden et al. [21]	162	15	9.3	11	6.8	7	4.3	4	2.5	1	0.6
Ota and Kato [27]	942	25	2.7	19	2.0	13	1.4	6	0.6	0	0.0
Total; unadjusted proportion (95% CI)	15 889	647	4.1 (3.8–4.4)	495	3.1 (2.8–3.4)	339	2.1 (1.9–2.4)	186	1.2 (1.0–1.3)	30	0.2 (0.1–0.3)
Total; weighted proportion (95% CI)	15 889	647	5.1 (2.6–8.1)	495	3.7 (1.9–6.0)	339	2.4 (1.1–4.0)	186	1.1 (0.4–2.0)	30	0.000 (0.000–0.003)
I² (%)			97.5		96.5		94.5		89.3		43.2

Data are presented as n (% of contacts identified), unless otherwise indicated. LTBI: latent tuberculosis infection.