Table 2. Univariate and multivariate analysis of risk factors associated with Kyasanur Forest disease outbreak, Shimoga District, Karnataka State, India, December 2011–March 2012.

Variable	No. (%) case-patients, n = 51	No. (%) controls, n = 102	Odds ratio (95% CI)
			Matched	Adjusted
Handled cattle in last week	47 (92)	72 (71)	5.4 (1.6–18.2)	5.1 (1.3–20.4)
Went to forest in last week	44 (86)	72 (71)	4.2 (1.2–14.3)	4.7 (1.1–20.3)
Had pile of leaves within the compound	39 (76)	58 (57)	3.2 (1.3–7.9)	4.0 (1.3–12.3)
Had cattle shed in household	48 (94)	89 (87)	3.3 (0.7–16.3)	3.7 (0.5–25.9)
Received 2 doses of vaccine in 2011	20 (39)	42 (41)	0.7 (0.2–2.9)	2.4 (0.4–15)
Used tick repellent before going to forest	8 (16)	18 (18)	0.8 (0.3–2.4)	1.1 (0.3–3.8)

*Boldface indicates significance.