Effect of Neiguan and Gongsun acupuncture on gastric electrical rhythm after gastric cancer surgery

Table 2 Comparison of Nepean Dyspepsia Index score changes between two groups (mean ± SD, points)

Group	Cases	Before treatment	After 4 weeks treatment	4 weeks follow-up
Study group	60	72.4 ± 8.9	38.2 ± 12.1a	43.8 ± 13.2
Control group	60	73.1 ± 9.2	52.7 ± 14.3	56.2 ± 15.6
F value		Between-group effect: 28.45	Time effect: 89.67	Interaction effect: 6.38
P value		< 0.001	< 0.001	0.003

^aP < 0.025 after Bonferroni correction (α = 0.025) vs control group at the same period.