Table 3.

Univariate and multivariate analysis of intestinal parasitic infections and potential risk factors among the 224 participants

Risk factor	No. examined	No. of infections (%)	Crude OR (95% CI)	P-value	Adjusted OR (95% CI)	P-value
Gender
Male	88	20 (22.7)	2.2 (1.1,4.5)	0.032*	2.4 (1.1,5.2)	0.020*
Female	136	16 (11.8)
Age (year)
≥ 40	154	30 (19.5)	2.6 (1.0,6.5)	0.045*	2.6 (0.9,6.8)	0.051
< 40	70	6 (8.6)
Educational level
Primary school	162	29 (17.9)	1.7 (0.7,4.1)	0.232	-	-
More than primary school	62	7 (11.3)
Occupation
Agriculture	129	25 (19.4)	1.8 (0.9,3.9)	0.12	-	-
Other	95	11 (11.6)
Monthly income (Baht)
< 10,000	125	20 (16.0)	1.0 (0.5,2.0)	0.974	-	-
≥ 10,000	99	16 (16.2)
Family members
<5	190	28 (14.7)	0.6 (0.2,1.4)	0.203	-	-
≥5	34	8 (23.5)
Raised dogs
Yes	102	22 (21.6)	2.1 (1.0–4.4)	0.043*	2.0 (0.9,4.2)	0.077
No	122	14 (11.5)
Raised cats
Yes	61	8 (13.1)	0.7 (0.3,1.7)	0.462	-	-
No	163	28 (17.2)
Wearing shoes outside
No	48	6 (12.5)	0.7 (0.3,1.8)	0.449	-	-
Yes	176	30 (17.0)
Wearing boots in the field
No	95	21 (22.1)	2.2 (1.0,4.5)	0.038*	1.9 (0.9,4.0)	0.095
Yes	129	15 (11.6)
Eating undercooked food
Yes	145	22 (15.2)	0.8 (0.4,1.7)	0.62	-	-
No	79	14 (17.7)
Washing hands before meals
No	31	7 (22.6)	1.6 (0.7,4.2)	0.292	-	-
Yes	193	29 (15.0)
Open defecation
Yes	94	19 (20.2)	1.7 (0.8,3.4)	0.154	-	-
No	130	17 (13.1)
Use of antiparasitic drugs
No	203	35 (17.2)	4.2 (0.5,32.0)	0.171	-	-
Yes	21	1 (4.8)
Drinking water treatment					-	-
No	83	13 (15.7)	1.1 (0.5,2.2)	0.898	-	-
Yes	141	23 (16.3)

OR, odds ratio.

^*P-value≤ 0.05.