意外伤害在儿童青少年的各种死因中居第1位,是影响其身心健康的一个主要原因。为做好我国儿童青少年意外伤害的预防工作,我们于1991年5月对北京市1所普通中学进行了调查。调查对象与方法:以钢院附中825名学生为调查对象,其中男423人,女395人。调查采用学生自填问题卷法,有效答卷818份,应答率为99％调查结果:学生在最近1年内受外伤情况,在818名中学生中,有73人在最近1年内受过外伤,占被调查人数的8.9％,其中有11人受过2次外伤,年外伤发生率为10.3％。男生外伤发生率为14.7％(初中13.5％,高中15.7％),女生5.6％(初中1.7％,高中8.6％)。外伤发生率男生高于女生(P<0.05),高中女生高于初中 Accidental injury ranks first among all causes of child and adolescent mortality and is one of the major causes of physical and mental health. In order to do a good job in preventing accidental injury to our children and adolescents, we conducted a survey in a general secondary school in Beijing in May 1991. Subjects and Methods of Investigation: 825 students in the Middle School of Steel Institute were investigated, including 423 males and 395 females. Survey using self-enrollment questionnaire volume, 818 valid questionnaires, the response rate was 99%. Survey results: students in the past year by the trauma, in 818 secondary school students, 73 were in the recent 1 year were trauma, accounting for being investigated 8.9% of the population, of whom 11 had 2 traumas, the annual incidence of trauma was 10.3%. The incidence of trauma in boys was 14.7% (13.5% in junior high and 15.7% in high school) and 5.6% in girls (1.7% in junior high and 8.6% in high school). The incidence of trauma boys than girls (P <0.05), high school girls than junior high school