Table 1

 Perceived intensities

Distension sequence
123
VAS, visual analogue scale.
VAS for discomfort and pain (mm; median (interquartile range)) during the distension sequences before (1), during (2) and after stress (3) in series I experiments.
*p<0.05 versus sequence 3; ††p<0.01 versus controls.
Discomfort (VAS)
    Control29 (13–49)19 (8–32)24 (10–45)
    IBS60 (39–73)††56 (45–70)††64 (45–78)††
Pain (VAS)
    Control1 (0–12)0 (0–10)*0 (0–13)
    IBS38 (0–64)*††18 (0–67)††52 (7–67)††