Modified Xiaochaihu Decoction for gastroesophageal reflux disease: A randomized double-simulation controlled trial

Table 1 Gastroesophageal reflux disease-Q scale scoring changes

	Treatment, n = 116	Control, n = 130	Mean difference (95% confidence interval)	P value
Before treatment	10.53 ± 2.01	10.10 ± 1.64	0.434 (0.067 to 0.077)	0.077
2 wk treatment	8.25 ± 1.85a	7.99 ± 1.85a	0.266 (0.100 to 0.112)	0.108
4 wk treatment	7.36 ± 1.71a	7.21 ± 1.63a	0.147 (0.463 to 0.483)	0.469
1 mo withdrawal	7.59 ± 1.82a	7.59 ± 1.47a	0.003 (0.301 to 0.309)	0.301
3 mo withdrawal	7.56 ± 1.78a	7.44 ± 1.54a	0.114 (0.826 to 0.841)	0.837

^aP < 0.01, 2 wk treatment, 4 wk treatment, 1 mo of withdrawal, 3 mo of withdrawal were compared with before treatment.