Table 3. - Clinical features based on questionnaires associated with IPIs among individuals with gastrointestinal disorders in Nahavand County, western Iran (n = 1301).

Clinical features	Examined individuals n	Infected with intestinal parasites n (%)	OR	CI _95%	p-value*
Clinical features	Examined individuals n	Infected with intestinal parasites n (%)	OR	Lower	Upper
Abdominal pain						0.409
Yes	980	322 (32.9)	1.130	0.860	1.485
No	321	97 (30.2)	Reference
Nausea or vomiting						0.250
Yes	58	23 (39.7)	1.406	0.820	2.411
No	1243	396 (31.9)	Reference
Stomach pain						0.752
Yes	522	165 (31.6)	0.959	0.756	1.217
No	779	253 (32.6)	Reference
Bloating						1.000
Yes	168	54 (32.1)	0.997	0.705	1.410
No	1133	365 (32.2)	Reference
Diarrhea						<0.001
Yes	585	221 (37.8%)	1.573	1.245	1.988
No	716	198 (27.7%)	Reference
Dysentery						0.04
Yes	40	19 (47.5%)	1.948	1.035	3.663
No	1261	400 (31.7%)	Reference
Constipation						< 0.001
Yes	62	8 (12.9%)	0.298	0.141	0.633
No	1239	411 (33.2%)	Reference

OR: odds ratio; n: Number; Reference: The subgroup is considered as baseline; *Chi 2 test was used