中文摘要：

根据手术部位感染风险特点，在文献分析的基础上，综合运用德尔菲法、问卷调查法、风险矩阵法等，构建手术部位感染风险指标体系及风险量化矩阵，对手术部位感染风险因素进行定级与分类。研究提示，手术技巧和手术时间长是手术部位感染最为关键的风险影响因素，其次是手术室环境维护不到位和患者基础情况评估纠正不足。手术部位感染风险管理，应重点针对影响风险的关键因素进行监控与治理，提高资源的优化利用和手术部位感染防控能力。

英文摘要：

In view of risk characteristics of surgical site infection,the risk factors of the infection were graded and classified while the risk indicators system and risk assessment matrix for surgical site infection were built,based on literature analysis,integrated use of documents analysis,Delphi method and risk quantification matrix.The study indicated that surgical skills of the surgeon and surgical time length are the most important risk factors,followed by insufficient maintenance of the operating room environment and poor baseline assessment of the patient.Risk control of surgical site infection needs to focus on these key factors,optimize utilization of resources and improve the prevention and control ability of surgical site infection.