关键词: 钝锐器伤, 儿童, 农村地区, 影响因素分析

Abstract: Objective　To determine the occurrence of blunt and sharp injuries in school-aged children in rural areas in North Guizhou，to analyze their influencing factors，and to provide a basis for the prevention and control measures among children with blunt and sharp injuries.Methods　A questionnaire survey was conducted among 2 865 school-aged children（8 to 17 years）in seven middle and primary schools in three counties in North Guizhou from June 2012 to June 2013.A multi-stage cluster random sampling method was used.The questionnaire included the basic data of children（gender，age and physical condition），family information（parents’ activities，birth order，abusive experiences，housework situation，and involvement in fights），and common experiences leading to blunt and sharp injuries（activity causing injury，injured parts，and severity）.Results　A total of 2 865 questionnaires were issued，but 2 854 questionnaires were recovered.Thus，the effective recovery rate was 99.6%.The total number of injuries was 477 cases（16.7%）.Of these cases，74 were caused by blunt and sharp injuries（2.6%）and 403 were attributed to other injuries（14.1%）.The incidence rates of blunt and sharp injuries associated with different genders，left at home，and birth order（i.e.only child）did not significantly differ（P>0.05），the incidence rates of such injuries among different ages significantly varied（P<0.05）.The incidence rates of such injuries related to physical conditions and housework situations did not also significantly differ（P>0.05），the incidence rates of such injuries associated with abusive experiences and involvement in fights significantly differed（P<0.05）.The severity of blunt and sharp injuries did not significantly differ from that of other injuries（P>0.05），activities and injured parts caused by blunt and sharp injuries significantly differed from those of other injuries（P<0.05）.Multivariate Logistic regression analysis revealed that young age，abusive experience，and involvement in fights were risk factors of blunt and sharp injuries in school-aged children（P<0.05）.Conclusion　In rural areas in North Guizhou，the incidence of blunt and sharp injuries in school-aged children is high.Such injuries mainly occur when children engage in entertaining activities or perform housework.Thus，intervention should be implemented among young children and children who exposed to abusive treatments and involved in fights.Parents，school authorities，and social groups should promote the prevention and management of blunt and sharp injuries，increase children’s awareness regarding such injuries，and create a safe environment for children’s healthy growth.

Key words: Blunt and sharp injuries, Child, Rural areas, Root cause analysis