Table 3.

Distribution of seroprevalence for Leptospira spp. by demographic, geographic and management factors.

Potential Risk Factor	Tested Animals	Positive Animals	Seroprevalence (%)	95% CI 1
Age
1–5 years	18	7	38.9	27.6–50.1
6–15 years	93	69	74.2	69.7–78.6
16–30 years	23	14	60.9	50.9–70.8
Sex
Female	97	66	68.0	63.4–72.7
Male	24	17	70.8	61.7–79.9
Gelding	13	7	53.8	40.3–67.4
Location of the farm
Mountain	102	70	68.6	64.1–73.1
Valley	32	20	62.5	54.1–70.9
Rodent control
Yes	52	29	55.8	49.0–62.5
No	82	61	74.4	69.7–79.1
Housing
Box or paddock	34	22	64.7	56.7–72.7
Free ranging	100	68	68.0	63.4–72.6
Presence of other domestic animals 2
Yes	95	64	67.4	62.7–72.1
No	39	26	66.7	59.3–74.1
Presence of wild animals 3
Yes	85	55	64.7	59.6–69.8
No	49	35	71.4	65.1–77.8

¹ Confidence interval. ² Reported domestic animals: cats, dogs, goats, poultry and pigs. ³ Reported wild animals: deer, foxes, roes, wolves, wild boars.