A Randomized Placebo-Controlled N-of-1 Trial: The Effect of Proton Pump Inhibitor in the Management of Gastroesophageal Reflux Disease

Table 3

Results for treatment comparisons of the N-of-1 trial (12 pairs of treatments, 24 weeks).

	Weeks of treatment	Mean-controlled symptoms (GerdQ)	Standard deviation	D'Agostino–Pearson	Wilcoxon test value
Treatment A (±SD)	12	9.50	0.5	0.598	0.30078
Treatment B (±SD)	12	10.17	0.6	0.035

^†GerdQ: gastroesophageal reflux disease questionnaire.