Table 1

 Frequency and severity of associated symptoms in 18 patients with constipation predominant irritable bowel syndrome (IBS-C) and 12 patients with diarrhoea predominant irritable bowel syndrome (IBS-D)

IBS-C
2/week 1/week Less than 1/week
    Bowel frequency9 (50%)4 (22%)5 (28%)
Very hard Hard Soft Watery
    Stool consistency6 (34%)12 (66%)0 (0%)0 (0%)
Absent Mild Relevant Severe
    Urgency18 (100%)0 (0%)0 (0%)0 (0%)
    Bloating0 (0%)2 (11%)10 (56%)6 (33%)
    Discomfort0 (0%)3 (17%)12 (66%)3 (17)
    Pain0 (0%)9 (50%)3 (17%)6 (33%)
IBS-D
4-5/day 6–8/day More than 8/day
    Bowel frequency6 (50%)4 (33%)2 (17%)
Very hard Hard Soft Watery
    Stool consistency0 (0%)0 (0%)8 (66%)4 (34%)
Absent Mild Relevant Severe
    Urgency11 (92%)0 (0%)1 (8%)0 (0%)
    Bloating0 (0%)1 (8%)2 (16%)9 (76 %)
    Discomfort0 (0%)2 (16%)7 (58 %)3 (26%)
    Pain0 (0%)1 (8%)5 (41%)6 (51%)