中央静脉导管相关血流感染风险筛查表的编制

Compilation of A Risk Screening Scale of Central Venous Catheter-related Bloodstream Infections

目的编制中央静脉导管相关血流感染风险筛查表,并对其信效度进行检验。方法在文献检索、专家咨询和预调查的基础上编制了中央静脉导管相关血流感染风险筛查表。采用方便抽样法,选取2020年6-9月海军军医大学第二附属医院ICU的150例患者,采用该量表对其进行CRBSI风险筛查,并进行信效度分析、计算量表的诊断阈值、对CRBSI危险程度进行分级。结果最终形成的中央静脉导管相关血流感染风险筛查表,包括3个一级指标(置管操作相关因素、患者相关因素、日常维护相关因素)、21个二级指标和45个三级指标。该量表总的Cronbach’sα系数为0.922,总量表的内容效度为0.944。最终量表的诊断阈值为8分,其中8~12分为低危、13~17分为中危、≥18分为高危。结论中央静脉导管相关血流感染风险筛查表具有较好的信效度且诊断灵敏性和特异性高,能客观、准确地评估中央静脉导管相关血流感染的风险及确定风险等级,值得临床推广应用。

Objective To compile a risk screening scale of central venous catheter-related bloodstream infection(CRBSI)and test its reliability and validity.Methods A risk screening scale of central venous CRBSIs was compiled based on literature retrieval,expert consultation and pre-survey.A total of 150 patients admitted to the ICU of the Second Affiliated Hospital of the Second Military Medical University from June to September 2020 were selected by convenience sampling.The scale was used for CRBSI risk screening and grading in these patients,then analyzed for reliability and validity,and calculated for diagnostic threshold.Results The final risk screening scale of central venous CRBSI involved 3 first-level indicators(catheterization-related factor,patient-related factor and routine maintenance-related factor),21 second-level indicators and 45 third-level indicators.The Cronbach'sαcoefficient and content validity of the total scale were 0.922 and 0.944,respectively.The final scale had a diagnostic threshold of 8 points,with 8–12 points referring to low risk,13–17 points to intermediate risk,and≥18 points to high risk.Conclusion The risk screening scale of central venous CRBSI,with high reliability,validity,and diagnostic sensitivity and specificity,can assess the risk of central venous CRBSI and perform risk grading in an objective and accurate manner.Therefore,it is worthy of clinical promotion.