Fig. 2.

Incidence of (A) nausea and (B) vomiting, and (C) the use of antiemetics in each study group during the 24 hr postoperative period. P6 group: capsicum plaster at the P6 and an inactive tape at the deltoid region of both shoulders, K-D2 group: capsicum plaster at the K-D2 acupoint and an inactive tape at both deltoid regions, Control group: an inactive tape at the P6 acupoint and at both deltoid regions, Sham group: capsicum plaster on both shoulders and an inactive tape at both P6 points. For each group, the error bar indicates the value of the upper limit of the 95% confidence interval for the percentage of patients achieving the endpoint. ^*P < 0.001 compared with the control and sham groups.