Fig. 1

Comparison of adherence to the national guidelines for prevention of chemotherapy-induced nausea and vomiting (A), complete protection from nausea plus vomiting (B), nausea (C), and vomiting (D) in patients with colorectal cancer receiving moderately emetic chemotherapy (MEC) at an outpatient cancer chemotherapy clinic between the pre-intervention group and post-intervention group. Intervention was carried out to facilitate antiemetic medication based on clinical practice guidelines. *P < 0.05, ** P < 0.01 by Chi-square test