Table 3

Comparison of the effects of hypnotic relaxation, anger, and happiness on the discomfort thresholds (volume and pressure) in irritable bowel syndrome patients with a diarrhoea or constipation predominant, or alternating bowel habit

Awake (control)Hypnotic relaxationHypnotic happinessHypnotic anger
Results are expressed as geometric mean (95% confidence interval).
*p<0.05, **p<0.09 compared with awake.
†p<0.05, ††p<0.08 compared with relaxation.
‡‡p<0.01 compared with happiness.
Diarrhoea predominant bowel habit (n=5)
    Volume (ml)134 (90, 200)164 (122, 200)**181 (148, 221)*100 (67, 164)**†
    Pressure (cm H2O) 30 (20, 49) 30 (16, 55) 45 (30, 60)* 45 (33, 55)
Constipation predominant bowel habit (n=8)
    Volume (ml)134 (67, 221)148 (100, 200)164 (134, 221)† 90 (45, 164)††‡‡
    Pressure (cm H2O) 27 (20, 40) 22 (15, 33) 37 (25, 49) 33 (22, 49)*
Alternating bowel habit (n=7)
    Volume (ml)122 (90, 181)164 (122, 221)*122 (90, 181)† 67 (40, 122) *†‡‡
    Pressure (cm H2O) 30 (20, 49) 20 (15, 27) 33 (30, 40) 37 (22, 60) *†‡‡