Seventy one outpatients (37 female, 34 male; age 23-82 years) with symptoms suggestive of both delayed gastric emptying and reflux referred for further investigations participated in the study. Gastric emptying of a semisolid 1168 kJ meal and oesophageal clearance of a water bolus (supine) were recorded scintigraphically, reflux by 24 hour pH monitoring, and oesophageal motility manometrically.