11.   Patients had significantly longer transit times.

12.   Patients had significantly longer median oesophageal transit times than controls in both erect and supine postures.

13.   There was no significant change in the median transit time after healing of oesophagitis.

14.   Transit times and daily stool weights are shown in Table I.

15.   Clearly the nature of this relationship requires further investigation, particularly as no other case controlled studies have reported on transit time in relation to faecal bile acid concentration.

16.   Orocaecal transit time was measured by hydrogen breath analysis.

17.   Colonic transit time was assessed by means of radioopaque markers.

18.   The results of segmental transit time are given in Table II.

19.   Breath hydrogen analysis after oral lactulose containing meals is an easy, non-invasive, bedside test to measure mouth-to-caecum transit time.