Table 2.

Comparison of symptom scores under different gastric dilatation volumes between the two groups.

Observed indexes	Control group (n = 36)		Study group (n = 37)
	Before treatment	After treatment	Before treatment	After treatment
Epigastric pain
200 ml	0.94 ± 0.23	0.72 ± 0.45	0.95 ± 0.23	0.05 ± 0.23∗,#
300 ml	1.86 ± 0.76	1.06 ± 0.47∗	1.62 ± 0.72	0.62 ± 0.49∗,#
400 ml	2.42 ± 0.65	1.47 ± 0.65∗	2.27 ± 0.80	1.00 ± 0.08∗,#
Fullness
200 ml	1.08 ± 0.28	0.97 ± 0.17	1.14 ± 0.35	0.30 ± 0.46∗,#
300 ml	1.97 ± 0.70	1.33 ± 0.79∗	1.65 ± 0.86	0.862 ± 0.48∗,#
400 ml	2.39 ± 0.69	1.89 ± 0.68∗	2.49 ± 0.61	1.32 ± 0.67∗,#
Nausea or vomiting
200 ml	1.00 ± 0.24	0.67 ± 0.48	0.97 ± 0.29	0.11 ± 0.31∗,#
300 ml	1.78 ± 0.68	1.14 ± 0.59∗	1.92 ± 0.80	0.65 ± 0.54∗,#
400 ml	2.19 ± 0.82	1.44 ± 0.69∗	1.95 ± 0.81	0.97 ± 0.50∗,#

Note: ^∗ meant P < 0.05 vs. before treatment; ^# meant P < 0.05 vs. after treatment in control group.