Abstract: Background　Chronic headache severely impairs people's quality of life.It can be caused by inappropriate use of electronic devices.College students are a population with high-frequency use of electronic devices and high prevalence of chronic headache.However，few studies have evaluated the use of electronic devices and chronic headache among this population in China.Objective　To evaluate the relationship between the use of electronic devices and prevalence of chronic headache among college students in China based on a survey concerning the use of electronic devices.Methods　From March to June 2017，using a self-developed questionnaire，we conducted a survey among the 6 000 students from 127 universities 29 provinces（except Taiwan，Qinghai，Xizang，Ningxia，Xinjiang） of China for collecting the data about demographic characteristics，use of electronic devices，psychological status（spirit state during learning，role of electronic devices in life） and prevalence of chronic headache.Univariate Logistic regression analysis was performed to investigate the relationship between use of electronic devices and prevalence of chronic headache.Results　Of the 6 000 questionnaires administered，5 622（93.7%） were returned，and 4 848 were responsive，achieving a response rate of 80.8%（4 848/6 00）．The prevalence of chronic headache was 29.3%（1 420/4 848）.Of the 4 848 final participants，the longest duration of computer use for one time daily is mainly>4 h，
neck and shoulder discomfort after long period of computer use to 58.3% of them，eye-to-screen distance while using mobile terminals is mainly 10-20 cm，time spent on using a mobile device per day is mainly >4 h，neck and shoulder discomfort after prolonged use of a handheld mobile terminal to 46.8% of them，posture of using an electronic device when sitting in the seat of a vehicle is mainly figure 1 B，the longest time for using electronic devices with the same posture sitting at the table is mainly 1-<2 h，using electronic devices in bed to 87.6% of them，duration for using electronic devices with the same posture in bed for one time is mainly 0.5-<1.0 h.Which was significantly associated with gender，major，the longest duration of computer use for one time daily，neck and shoulder discomfort after long period of computer use，eye-to-screen distance while using mobile terminals，time spent on using a mobile device per day，neck and shoulder discomfort after prolonged use of a handheld mobile terminal，posture of using an electronic device when sitting in the seat of a vehicle，the longest time for using electronic devices with the same posture sitting at the table，using electronic devices in bed，duration for using electronic devices with the same posture in bed for one time，spirit state during learning，and role of electronic devices（P<0.05）．Conclusion　The longest duration of computer use for one time daily or time spent on using a mobile device per day is mainly >4 h of college students.Neck and shoulder discomfort after ong period of computer use or prolonged use of a handheld mobile terminal is in the majority of college students.The prevalence of chronic headache among college students is significantly associated with gender，major，use of electronic devices，and psychological stress.Female，engineering，agriculture，foreign literature，or science majors，inappropriate use of electronic devices，as well as great psychological stress obviously increase the risk for chronic headache.With the increasing popularity of electronic devices，the prevalence，treatment and control of chronic headache among college students in China deserve more attention and interventions.

Key words: Headache disorders, Students, Cross-sectional studies, Root cause analysis

摘要： 背景　慢性头痛严重影响人们生活质量，其产生与电子产品的使用有关。大学生群体是使用电子产品的主流人群，也是慢性头痛的高发人群，目前国内对电子产品使用现状和慢性头痛间的关系鲜有研究。目的　调查大学生电子产品使用现状、慢性头痛的患病率及大学生电子产品使用现状与慢性头痛的关系。方法　2017年3—6月，以上海交通大学为基础向全国29省份（除台湾、青海、西藏、宁夏、新疆）127所高校6 000名学生进行问卷调查。问卷内容包括人口统计学信息、电子产品使用现状、心理状态（目前学习状态、电子产品在生活中的地位）以及慢性头痛患病情况。采用单因素Logistic回归分析分析电子产品使用对慢性头痛的关系。结果　共发放问卷6 000份，回收问卷5 622份（93.7%），回收有效问卷4 848份，回收有效率80.8%（4 848/6 000），大学生慢性头痛的患病率为29.3%（1 420/4 848）。大学生每天使用电脑单次最长时间以>4 h为主，长时间使用电脑后颈肩不适占58.3%（2 828/4 848），使用移动终端离屏幕距离以10~20 cm为主，每天使用移动终端时间以>4 h为主，长时间使用手持移动终端后颈肩不适占46.8%（2 269/4 848），交通工具上坐位使用电子产品的姿势以图1 B为主，桌前保持姿势最长时间的以1~<2 h为主，床上使用电子产品占87.6%（4 249/4 848），床上每次保持姿势时间以0.5~<1.0 h为主。性别、专业、每天使用电脑单次最长时间、长时间使用电脑后颈肩不适、使用移动终端离屏幕距离、每天使用移动终端时间、长时间使用手持移动终端后颈肩不适、交通工具上坐位使用电子产品的姿势、桌前保持姿势最长时间、床上使用电子产品、床上每次保持姿势时间、目前学习状态、电子产品在生活中的地位是慢性头痛的影响因素（P<0.05）。结论　大学生每天使用电脑单次最长时间和使用移动终端时间以>4 h为主，长时间使用电脑后或手持移动终端后颈肩不适占多数。大学生慢性头痛的影响因素是性别、专业、电子产品使用、心理压力，其增加大学生人群罹患慢性头痛症状的可能性。在电子产品普及的当下，中国大学生慢性头痛的现状和防治值得社会更多的关注和干预。

关键词: 头痛, 学生, 横断面研究, 影响因素分析