. 2018 Feb 5;13(2):e0192570. doi: 10.1371/journal.pone.0192570

Table 3. Results of univariate and logistic regression analysis of 729 dogs with IgG anti-T. gondii antibodies detected by IFAT in the urban area of Londrina from July 2015 to July 2016.

A: Univariate analysis
	Dogs Variables	Yes/ total (%)	OR	95% IC	p- value
	Monthly income:
	≤ 3 Minimum wage	729/729 (100.0)	^**
	> 3 Minimum wage	0/729 (0.00)
	Frequency of yard cleaning:
	Daily	448/729 (61.5)	1.00	0.65–1.53	0.98
	Occasionally	281/729 (38.5)	1.00	0.65–1.53	0.98
	Presence of cats at the household:
	Yes	141/729 (19.3)	0.94	0.56–1.61	0.80
	No	588/729 (80.7)	0.94	0.56–1.61	0.80
^*	Presence of other dogs:
	Yes	467/729 (64.1)	0.58	0.36–0.91	0.02
	No	262/729 (35.9)	0.58	0.36–0.91	0.02
^*	Visualization of accumulated dirt:
	Yes	306/729 (42.0)	0.50	0.33–0.76	0.01
	No	423/729 (58.0)	0.50	0.33–0.76	0.01
	Gender:
	Male	407/729 (55.8)	0.83	0.54–1.26	0.36
	Female	322/729 (44.2)	0.83	0.54–1.26	0.36
	Reproductive status:
	Neuter / Spayed	103/729 (14.1)	1.41	0.75–2.85	0.31
	Intact	626/729 (85.9)	1.41	0.75–2.85	0.31
	Difficulties at birth:
	Yes	589/729 (80.8)	0.54	0.18–1.74	0.26
	No	24/729 (3.3)	0.54	0.18–1.74	0.26
^*	Raw meat intake:
	Yes	220/729 (30.2)	0.72	0.47–1.12	0.13
	No	509/729 (69.8)	0.72	0.47–1.12	0.13
	Age:
	≤ 2 years old	232/729 (31.8)	1.20	0.77–1.91	0.45
	> 2 years old	497/729 (68.2)	1.20	0.77–1.91	0.45
	Access to street:
	Yes	387/729 (53.1)	1.01	0.66–1.52	0.97
	No	342/729 (46.9)	1.01	0.66–1.52	0.97
	Hunting habit:
	Yes	319/729 (43.8)	1.04	0.69–1.59	0.84
	No	410/729 (56.2)	1.04	0.69–1.59	0.84
	Presence of horses:
	Yes	704/729 (96.6)	0.69	0.13–2.35	0.78
	No	25/729 (3.4)	0.69	0.13–2.35	0.78
	Presence of cattle:
	Yes	726/729 (99.6)	^**
	No	3/729 (0.4)
	Presence of opossums:
	Yes	725/729 (99.5)	^**
	No	4/729 (0.5)
^*	Presence of birds:
	Yes	685/729 (94.0)	2.02	0.92–4.19	0.05
	No	44/729 (6.0)	2.02	0.92–4.19	0.05
B: Final logistic regression model
		adjusted-OR		95 CI adjusted-OR	p-value (Wald test)
Presence of other dogs		0.52		0.35–0.78	0.001
Presence of accumulated dirt		0.61		0.39–0.96	0.028

p<0.05, Chi square test, OR: odds ratio, MW: the monthly State Minimum Wage at the time of survey was R$ 880.00, equivalent to U$264.26 with an exchange rate of 3.33 for US$ Dollar to R$ Real.

*variables included in the logistic models.

** there was no sufficient expose and no expose to proceed the analysis.