Influence of the requirement for abdominal pain in the diagnosis of irritable bowel syndrome with constipation (IBS-C) under the Rome IV criteria using data from a large Japanese population-based internet survey

Table 2 Associations between the degree of anxiety and GI symptoms of the surrogate Rome IV FBD and IBS-C subjects

	Surrogate Rome IV FBD subjects					Surrogate Rome IV IBS-C subjects
GI symptoms/Degree of anxiety	None	Sometimes	Often	Almost	Kendall’s τ	None	Sometimes	Often	Almost	Kendall’s τ
Abdominal bloating					0.09					0.21*
No	20	28	7	2		6	6	0	1
Yes	52	148	40	5		19	56	25	13
Abdominal discomfort					0.03					0.17*
No	27	58	15	3		6	10	1	1
Yes	45	118	32	4		19	52	24	13
Abdominal pain					N/A					N/A
No	72	176	47	7		N/A	N/A	N/A	N/A
Yes	N/A	N/A	N/A	N/A		25	62	25	14
Frequency of bowel movement in a week					0.01					−0.10
> 1 time	2	4	2	0		1	2	1	1
1 time	3	22	3	1		3	7	6	1
2 times	19	42	12	1		4	22	4	4
3 times	17	29	6	1		6	9	10	3
4 times	8	19	6	0		2	4	1	2
5 times	6	20	5	3		1	6	0	0
6 times	5	11	3	0		2	3	1	1
7 times	9	19	9	1		2	5	2	2
8 times or more	3	10	1	0		4	4	0	0

ISSN: 1751-0759