Table 2. Univariate analysis of the variables associated with T. gondii seroprevalence.

Variable	Blood donor No.	Seropositivity(%)	Odds Ratio(95% Confidence interval)	p-value
Donation place
Hualien	170	18.8	2.6 (1.7–3.9)	<0.001*
Non-Hualien	1,613	8.3	1.0
Gender
Male	1,127	10.1	1.3 (0.9–1.8)	0.131
Female	654	8.0	1
Educational level
High school and below	638	12.2	1.7 (1.2–2.3)	0.002*
College and above	1,138	7.7	1.0
Blood group type
O	814	9.1	1.0
A	492	9.1	1.0 (0.7–1.5)	0.973
B	331	8.5	0.9 (0.6–1.5)	0.734
AB	146	13.0	1.5 (0.9–2.6)	0.142
Valley water consumption
Yes	229	13.1	1.6 (1.03–2.4)	0.036*
No	1,553	8.8	1.0
Undercooked beef meat consumption
Yes	463	9.3	0.99 (0.7–1.4)	0.974
No	1,317	9.3	1.0
Undercooked pork meat consumption
Yes	51	21.6	2.8 (1.4–5.6)	0.003*
No	1,728	8.9	1.0
Raw fish consumption
Yes	1,258	9.5	1.1 (0.7–1.5)	0.763
No	522	9.0	1.0
Raw mussels consumption
Yes	14	28.6	4.0 (1.2–12.8)	0.034*
No	1,762	9.1	1.0
Uncooked vegetables consumption
Yes	1,287	9.7	1.2 (0.8–1.7)	0.365
No	493	8.3	1.0
Cats in the neighborhood
Yes	451	10.0	1.1 (0. 8–1.6)	0.564
No	1,313	9.1	1.0
Cat in the household
Yes	187	14.4	1.8 (1.1–2.8)	0.012*
No	1,593	8.7	1.0
Gardening or agriculture
Yes	649	10.9	1.4 (0.98–1.9)	0.069
No	1,128	8.3	1.0
Blood transfusion
Yes	181	9.9	1.1 (0.7–1.8)	0.765
No	1,597	9.3	1.0
Living abroad (>3 month)
Yes	78	2.6	1.0
No	1,698	9.5	4.0 (0.98–16.5)	0.054

^*Statistically significant.