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

Table 5 Changes in patients with ineffective swallowing > 50%

	Treatment, n = 49	Control, n = 48	P value
Pre-treatment, %	85.30 ± 15.42	83.12 ± 17.03	0.647
Post-treatment, %	63.46 ± 21.07a,b	72.29 ± 21.52a	0.016
Mean difference (95% confidence interval)	21.837 (0.000 to 0.000)	10.833 (0.002 to 0.004)
P value	0	0.003

^aP < 0.01, compared with pre-treatment in the group.

^bP < 0.05, compared with the control group after treatment.