Table 5. Multivariate logistic regression analysis of variables associated with Coxiella burnetii seroreactivity among dairy cattle farmers in Korea.

Variables		OR (95% CI)	P value
Sex
	Male	1.79 (1.14–2.82)	0.012
	Female	Reference
Region
	Gyeonggi Province	1.88 (1.24–2.86)	0.003
	Others	Reference
Herd size (dairy cattle)
	< 50	Reference
	50–99	1.31 (0.83–2.06)	0.249
	≥ 100	2.02 (1.18–3.45)	0.010
Farm beef or Korean native cattle
	Yes	0.66 (0.43–1.01)	0.054
	No	Reference
Wearing protective gloves during cleaning cattle excretion
	Always	0.63 (0.39–0.99)	0.046
	Sometimes or rarely	Reference
	No cleaning	1.13 (0.59–2.14)	0.715
Contact with birth products via eyes or mouth during calf delivery
	Yes	1.54 (1.02–2.33)	0.040
	No	Reference
	No calf delivery	1.56 (0.85–2.88)	0.154

OR = odds ratio, CI = confidence interval.