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Table 1 Comparison of assumptions about bowel habits between the surrogate Rome IV FBD (not experiencing abdominal pain) and IBS-C (experiencing abdominal pain) subjects

From: 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

 

Total

(Abdominal pain or discomfort in the last 3 months

≥ 1 day/week)

Not experiencing abdominal pain

Experiencing abdominal pain

 
 

Surrogate Rome III IBS-C subjects (n = 428)

Surrogate Rome IV FBD subjects

(n = 302)

Surrogate Rome IV IBS-C subjects

(n = 126)

p-value

(Surrogate Rome IV FBD vs Surrogate Rome IV IBS-C)

Female/male (n)

305/123

(71.3/28.7)

212/90

(70.2/29.8)

93/33

(73.8/26.2)

n.s.

Age (mean ± SD, years)

47 ± 14

49 ± 14

43 ± 14

< 0.001

Frequency of bowel movements (median, times/week)

3

3

3

n.s.

Ideal frequency of bowel movements

   

n.s.

 6 times/week or less

92 (21.5)

71 (23.5)

21 (16.7)

 

 7 times/week

319 (74.5)

221 (73.2)

98 (77.8)

 

 8 times/week or more

17 (4.0)

10 (3.3)

7 (5.6)

 

Considered bowel habit to be an indicator of health

   

n.s.

 None

37 (8.6)

27 (8,9)

10 (7.9)

 

  Sometimes

100 (23.4)

72 (23.8)

28 (22.2)

 

 Often

110 (25.7)

86 (28.5)

24 (19.0)

 

 Mostly

94 (22.0)

66 (21.9)

28 (22.2)

 

 Always

87 (20.3)

51 (16.9)

36 (28.6)

 

Degree of anxiety in daily life

   

p < 0.001

 None

97 (22.7)

72 (23.8)

25 (19.8)

 

 Sometimes

238 (55.6)

176 (58.3)

62 (49.2)

 

 Often

72 (16.8)

47 (15.6)

25 (19.8)

 

 Almost

21 (4.9)

7 (2.3)

14 (11.1)

 
  1. Data are expressed as n (%) unless otherwise indicated