Table 3. Univariate analysis of the variables associated with Toxoplasma gondii diseases.

	Case patients	Control subjects	Crude Odds Ratio
Variable	(N = 30)	(N = 224)	(95% Confidence interval)	p-value
Educational level
High school and below	16	81	2.2 (0.9–5.1)	0.079
College and above	14	143	1.0
Blood group type
O	16	94	1.0	0.744
A	7	65	0.6 (0.2–1.7)
B	5	43	0.7 (0.2–2.1)
AB	2	22	0.6 (0.1–2.7)
Valley water consumption
Yes	3	20	1.2 (0.3–5.1)	0.769
No	27	204	1.0
Undercooked beef consumption
Yes	12	62	1.8 (0.8–3.9)	0.149
No	18	162	1.0
Undercooked lamb meat consumption
Yes	2	8	1.9 (0.4–9.7)	0.397
No	28	216	1.0
Undercooked pork meat consumption
Yes	1	8	0.9 (0.1–7.4)	0.943
No	29	216	1.0
Raw fish consumption
Yes	22	152	1.4 (0.6–3.5)	0.418
No	8	72	1.0
Raw oyster consumption
Yes	10	58	1.5 (0.6–3.4)	0.349
No	20	166	1.0
Raw clam consumption
Yes	7	15	3.6 (1.4–9.3)	0.008
No	23	209	1.0
Uncooked vegetables consumption
Yes	23	164	1.5 (0.5–3.9)	0.459
No	7	60	1.0
Cats in the neighborhood
Yes	21	136	1.6 (0.7–3.7)	0.620
No	9	88	1.0
Cat in the household
Yes	8	30	2.8 (1.1–7.3)	0.040
No	22	194	1.0
Gardening or agriculture
Yes	15	75	2.2 (0.97–5.1)	0.058
No	15	149	1.0
Blood transfusion
Yes	5	21	1.96 (0.7–5.8)	0.224
No	25	203	1.0
Travel
Yes	8	36	2.1 (0.8–5.5)	0.110
No	22	188	1.0
Living abroad (>3 months)
Yes	1	9	1.0	0.843
No	29	215	1.2 (0.2–10.2)
HIV-positive†
Yes	5	0	53.8 (7.3–infinity)§	<0.0001§
No	12	131	1.0

^†Only 17 cases had a known HIV status.

^§Odds ratios and p values were computed using exact conditional logistic regression due to sparse data.