95% CI	OR	Chi-square	P	NOIBS		IBS		Irritable bowel syndrome variable
95% CI	OR	Chi-square	P	%	No.	%	No.	Irritable bowel syndrome variable
								Exercise:
-	-	0.736	0.692	12.1	21	8.1	14	Yes
				24.3	42	18.5	32	No
				19.1	33	17.9	31	Sometime
								Number of sleeping hours:
(0.61 - 2.1)	1.129	0.148	0.701	32.7	56	27.5	47	<8
				22.8	39	17	29	≥8
								Nutritional status (BMI):
-	-	1.711	0.635	7.5	13	6.4	11	Underweight
				34.7	60	28.3	49	Normal
				11.6	20	6.9	12	Obese
				1.7	3	2.9	5	Overweight