Objective To understand the epidemiological characteristics of multiple sclerosis and the status of fatigue and sleep in adolescent students in order to provide the basis for decision making of MS control and school sanitary work.

• 目的掌握青少年学生多发性硬化(multiple sclerosis,MS)的流行病学特征及疲劳睡眠状况,为制订MS防治计划和学校卫生工作规划提供重要依据。