Table 4. Univariable logistic regression analysis of factors associated with E. granulosus infection of dogs in households within the Limarí province, Chile (n = 93).

Risk factor	Infected	Uninfected	%	OR	p
Municipality
Combarbalá	15	37	29	1.00
Monte Patria	11	30	27	0.90	0.98
Dog's sex
Male	21	58	27	1.00
Female	5	9	36	1.53	0.71
Dog's age (months)
0–12	3	10	23	1.00
13–24	1	10	9	0.33	0.71
>24	22	47	32	1.56	0.53
Breed
No	25	59	30	1.00
Yes	1	8	11	0.30	0.44
Deworming
No	17	58	23	1.00
Yes	9	9	50	3.41	0.04
Own property
No	6	13	32	1.00
Yes	20	53	27	0.82	0.94
Owner's occupation
Rising livestock, farmer	7	12	37	1.00
Workers, office, unemployed	1	6	14	0.30	0.38
Housewife, retired	16	48	25	0.57	0.39
Education
Primary	14	35	29	1.00
Secondary	8	25	24	0.80	0.85
Graduate	4	6	40	1.67	0.48
Owner knows hydatidosis
No	18	55	25	1.00
Yes	8	12	40	2.04	0.28
Regular veterinary care
No	24	58	29	1.00
Yes	2	7	22	0.69	0.24
Home slaughter
No	6	31	16	1.00
Yes	20	36	36	2.87	0.04
Cysts seen in carcasses
No	10	26	18	1.00
Yes	15	41	18	0.95	0.92
Dogs present at slaughter
No	12	37	16	1.00
Yes	14	30	22	1.44	0.58
Feeding dogs with viscera
Yes	19	25	21	4.56	<0.01
Waste disposal
Within private property	18	41	23	1.00
Public collection	8	23	14	0.79	0.82

In bold are variables that were retained for the multivariable logistic regression analysis.