摘要目的:研究和平方舟医院船上任务人员在远航期间晕船反应发生情况，分析晕船反应发生的原因，为今后医院船合理配置任务人员及降低任务人员晕船反应发生率提供参考依据。方法:根据自愿原则，采用自制问卷对和平方舟医院船上260名任务人员进行问卷调查，问卷内容主要包括两部分，第一部分基本情况调查，包括性别、年龄、体质量、吸烟史等；第二部分影响晕船反应发生的因素调查，包括出海次数、人员类别、住舱所在甲板位置、登船前是否每日进行体育锻炼、登船后是否每日进行体育锻炼等信息。回收有效问卷251份。采用SPSS 19.0统计软件及Empower Stats软件对数据进行统计分析。结果:单因素分析发现晕船反应发生与性别、体质量、是否抽烟、既往是否执行过出海任务、住舱所在甲板位置、人员类别之间明显相关( P<0.05)。多元回归分析表明，女性及既往未执行过出海任务是晕船反应发生的危险因素( P<0.05)。阈值饱和效应分析显示，从第2个航段开始，每经历1个航段，任务人员晕船反应发生率降低0.51%。 结论:医院船在配置任务人员时应综合评估任务人员基本情况，在安排住舱位置时，应将晕船人员尽量安排在靠近船体中部底层。任务人员平时应注重身体锻炼，保持营养摄入平衡，增强抗晕船适应性训练。

abstractsObjective:To analyze the causes of seasickness in the mission participants of the hospital ship Peace Ark during along oceangoing voyage, so as to provide a reference basis for optimizing mission participants drafting and reducing the incidence of seasickness in future.Methods:We recruited 260 volunteers from the mission participants of the hospital ship Peace Ark, and carried out a survey with a self-made questionnaire. The questionnaire includes two parts: Part 1 collected the demographic information, e. g. sex, age, body mass, and smoking history, and Part 2 was for analyzing the factors that might affect the occurrence of seasickness, e. g. the history of participating oceangoing missions, the current onboard job, the location of living cabin, the history of daily physical exercise before the mission, the history of daily physical exercise during the current mission, etc. A total of 251 responses were collected. All the data were analyzed by SPSS19.0 software.Results:Univariate analysis showed that there were significant correlations between seasickness and sex, weight, smoking, the history of participating oceangoing missions, the location of living cabin, and the current onboard job ( P<0.05). The results of multivariate regression analysis showed that the sex of female and the history of participating any oceangoing missions were the risk factors of seasickness ( P<0.05). The analysis of threshold saturation effect showed that from the second stage of the voyage on, the incidence of seasickness decreased by 0.51% after each stage. Conclusion:When drafting participants for oceangoing missions, the basic conditions of participants should be comprehensively evaluated. Those who were easily suffering from seasickness should be allocated to the living cabins as much at the middle or lower part of the ship as possible. The mission participants should pay attention to physical exercise, well-balanced nutritional intake, and the adaptive training of anti-seasickness.