Table 4.

Multivariate analysis of selected characteristics of blood donors and their association with T. gondii infection.

Characteristic	Odds ratio	95% confidence interval	P value
Age	1.74	1.03–2.94	0.03
Suburban residence	1.56	0.78–3.12	0.20
Education	0.76	0.48–1.19	0.23
Laborer	0.38	0.13–1.15	0.08
Cleaning cat excrement	0.47	0.20–1.09	0.08
Flooring at home	0.83	0.43–1.58	0.57
Tobacco use	2.09	1.02–4.29	0.04