Table 2 Demographic and preoperative data

Gender

Systolic, diastolic and median blood pressure

Age

Electrocardiography (ECG) recording

History of postoperative nausea and vomiting (PONV)

Anesthesia modality

Surgery

Renal function

Smoking history

Hepatic function

Race

Cerebral perfusion pressure (CPP)

Motion sickness history

Past reactions to the study drugs