Table 1.

 Parameters of overall contractile activity at the recording site: +15 cm above the mid anal canal (representing the rectosigmoid) in control subjects (CS) and in those with rectal hypersensitivity (RH) and normal rectal sensation (NS)

Parameter		CS	RH	NS
Contractile activity (% of recording time)	+15	22.6 (1.3)	22.8 (1.4)	20.2 (1.2)
Contraction frequency (No/min)	+15	1.6 (0.1)	1.5 (0.1)	1.4 (0.09)
Median amplitude (mm Hg)	+15	9.6 (0.3)*	9.8 (0.4)*	8.4 (0.3)
Maximum amplitude (mm Hg)	+15	124 (9)**	127 (8)**	87 (8)
AUC (mm Hg/min)	+15	84 (6)*	90 (7)**	61 (5)

*p<0.05, **p<0.01 versus NS.

For activity at +25 cm (sigmoid) and +10 cm (rectum), please refer to the Gut website at http://www.gutjnl.com/supplemental.