All enrolled patients had either epigastric pain or discomfort
and a GOS score of at least moderate severity (4 of 7)
over the month prior to randomization. For the primary outcome
measure, treatment success was defined as a score of
either 1 (none) or 2 (minimal) on the GOS scale after 4 wk
of treatment and at the final 6 months visit. The proportion
of patients becoming completely asymptomatic (GOS = 1)
was also determined as a secondary outcome.