Table 2. Univariable and multivariable odds ratios for the ELISPOT and PPD skin tests by logistic regression (household as a random effect) according to sleeping proximity to a case.

Antigen	Sleeping proximity	% (n) positive	OR (95% CI)	Adj. ORa (95% CI)	pb
PPD skin test (n = 691)	Community	14.3 (14)	1.0	1.0
	Different house	20.7 (40)	1.7 (0.8–3.5)	1.8 (0.8–3.8)
	Different room	35.0 (96)	4.1 (2.1–8.2)	4.6 (2.2–9.6)
	Same room	61.9 (78)	14.2 (6.6–30.3)	15.7 (7.0–35.3)	0.0001
PPD ELISPOT (n = 720)	Community	64.8 (68)	1.0	1.0
	Different house	69.7 (138)	1.1 (0.6–2.0)	1.3 (0.7–2.4)
	Different room	62.3 (177)	1.0 (0.6–1.7)	1.2 (0.7–2.0)
	Same room	78.5 (106)	2.1 (1.1–4.0)	2.4 (1.2–4.8)	0.02
E/C c ELISPOT (n = 720)	Community	27.6 (29)	1.0	1.0
	Different house	27.8 (55)	1.1 (0.6–2.0)	1.0 (0.5–1.9)
	Different room	29.8 (84)	1.2 (0.7–2.1)	1.1 (0.6–2.0)
	Same room	43.0 (58)	2.3 (1.2–4.3)	2.2 (1.1–4.3)	0.02

^aAdj, adjusted; variables included: age, gender, ethnic group, BCG scar status

^bp –value for differences between proximities

^cEsat-6/CFP-10