. 2017 Jul 21;12(7):e0180906. doi: 10.1371/journal.pone.0180906

Table 1. Results of univariate logistic regression analysis of 564 households (owners or dogs) IgG anti-T. gondii antibodies detected by IFAT in the urban area of Londrina from July 2015 to July 2016.

A: Univariate logistic regression analysis
Household Variables	Yes/ total (%)	OR	95% CI	p-value
^*Monthly income (Minimum wage):
≤ 3 MW	424/564 (75.2)	0.71	0.47–1.06	0.09
> 3 MW	140/564 (24.8)	0.71	0.47–1.06	0.09
Source of drinking water:
Public system	533/564 (94.5)	0.87	0.39–1.93	0.71
Other	31/564 (5.5)	0.87	0.39–1.93	0.71
Presence of accumulated water at the yard:
Yes	77/564 (13.7)	1.15	0.69–1.91	0.62
No	487/564 (86.3)	1.15	0.69–1.91	0.62
Water box:
Yes	493/564 (87.4)	1.06	0.63–1.82	0.89
No	71/564 (12.6)	1.06	0.63–1.82	0.89
Cleaning of water box:
Presence	124/564 (22.0)	0.99	0.64–1.52	0.98
Abcense	493/564 (65.4)	0.99	0.64–1.52	0.98
^*Sewer:
Public sewer system	524/564 (92.9)	3.02	1.36–7.35	0.01
No public sewer system	40/564 (7.1)	3.02	1.36–7.35	0.01
Lid on water box:
Yes	483/564 (85.6)	0.83	0.18–3.62	0.76
No	10/564 (1.8)	0.83	0.18–3.62	0.76
Discharge of domestic garbage:
Plastic bag or garbage can	544/564 (96.5)	1.54	0.56–4.64	0.49
Other	20/564 (3.5)	1.54	0.56–4.64	0.49
Empty lot:
Yes	300/564 (53.2)	1.05	0.74–1.49	0.79
No	264/564 (46.8)	1.05	0.74–1.49	0.79
^*Frequency of yard cleaning:
Daily	345/564 (61.2)	0.75	0.53–1.07	0.12
Occasionally	219/564 (38.8)	0.75	0.53–1.07	0.12
Presence of cats at the household:
Yes	457/564 (81.0)	1.16	0.51–1.82	0.51
No	107/564 (19.0)	1.16	0.51–1.82	0.51
^*Visualization of accumulated dirt:
Yes	231/564 (41.0)	0.69	0.48–0.99	0.04
No	333/564 (59.0)	0.69	0.48–0.99	0.04
B: Final logistic model
Adjusted-OR	p-value (Wald test)
2.99	0.005
0.69	0.039
0.67	0.024

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.