Persistent high antibody titres against Coxiella burnetiiafter acute Q fever not explained by continued exposure to the source of infection: a case-control study

Table 3 Univariate and multivariable analysis

Univariate analysis
	OR (95% CI)	*p-value*
Age	1.56 (0.81 - 3.01)	0.186
Gender	0.71 (0.37 - 1.38)	0.314
Smoking	0.50 (0.23 - 1.09)	0.080
Contact fertilizer	2.00 (0.72 - 5.51)	0.182
Contact placental material	8.90 (0.97 - 81.69)	0.053
Contact with birds	0.29 (0.06 - 1.35)	0.115
Living distance to infected farm
<2,000 - 5,000 m	1.50 (0.56 - 4.02)	0.420
>5,000 m	2.32 (0.87 - 6.20)	0.094
Multivariable analysis
	OR (95% CI)	*p-value*
Smoking	0.51 (0.23 - 1.13)	0.096
Contact placental material	7.91 (0.85 - 73.99)	0.070
Contact with birds	0.30 (0.07 - 1.41)	0.127

ISSN: 1471-2334