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The alteration of mean scores in 5-point dyspepsia Likert scales during the study period.
The differences between symptoms of patients in the lansoprazole group and in the placebo group were assessed using the linear mixed models. We included group allocation (lansoprazole or placebo), time (weeks of treatments), and the interaction of group and time as fixed effects, and included the patient as a random effect into the linear mixed models. Data represent means ± SEM.
