Severity of reported vomiting and dizziness by treatment group.

aMild: awareness of sign or symptom, but easily tolerated.bModerate: discomfort enough to cause interference with usual activity.cSevere: incapacitating with inability to work or perform usual activity or patients at risk of death at the time of the event.Severity of reported vomiting and dizziness by treatment group.a. 轻度（Mild）：可察觉症状或体征，但易于耐受。 b. 中度（Moderate）：不适感足以干扰日常活动。 c. 重度（Severe）：导致失能，无法工作或开展日常活动，或事件发生时患者存在死亡风险。 按治疗组分类的报告呕吐与头晕严重程度。