Fujian Provincial Hospital, Fujian Medical University Affiliated Clinical Medical Institute, Nursing School of Fujian Medical University, No 134, East Street, Fuzhou City, Fujian Province, China.
Scand J Trauma Resusc Emerg Med. 2012 Jul 2;20:45. doi: 10.1186/1757-7241-20-45.
Rapid developments in intensive care medicine have made mechanical ventilation an essential method in the resuscitation and comprehensive treatment of critical care patients. This study aimed to develop and evaluate an appraisal form assessing the clinical effectiveness of adult invasive mechanical ventilation systems.
An appraisal form was designed according to the effectiveness evaluation theory of the American Weapons Systems Effectiveness Industry Advisory Committee (WSEIAC) along with literature review and expert panel review. Content validity of the preliminary form was analyzed in a cohort of 200 patients. Exploratory and confirmatory factor analysis was used to assess appraisal form validity. Discriminate validity of different ventilation outcomes was analyzed by t test. Test/retest reliability and inter-scorer reliability were evaluated with 30 patients after a 2-week interval by Cronbach's alpha.
Exploratory factor analysis showed eigenvalues for 3 dimensions (availability, dependability, capability) to be 7.85, 4.43, and 4.22, respectively. Cronbach's α for internal consistency of the appraisal form was 0.957, and 0.922, 0.961 and 0.937, respectively, for the 3 dimensions. Test-retest reliability of 3 dimensions was 0.976, and 0.862, 0.857, 0.885, respectively. Intra-class correlation coefficient verified test-retest reliability; ICC 0.976 and 0.862, 0.857, 0.885 for 3 dimensions, respectively.
The appraisal form for clinical effectiveness of adult invasive mechanical ventilation systems has high reliability and validity and may be used in clinical setting.
重症监护医学的快速发展使机械通气成为危重病患者复苏和综合治疗的重要方法。本研究旨在开发和评估一种评估成人有创机械通气系统临床效果的评估表。
根据美国武器系统效能工业咨询委员会(WSEIAC)的有效性评估理论,结合文献回顾和专家小组评审,设计了一种评估表。通过对 200 例患者的队列进行内容有效性分析,对初步表格进行了评估。采用探索性和验证性因子分析评估评估表的有效性。通过 t 检验分析不同通气结果的判别有效性。通过 Cronbach's alpha 在 2 周间隔后对 30 例患者进行测试/重测可靠性和评分者间可靠性评估。
探索性因子分析显示,3 个维度(可用性、可靠性、能力)的特征值分别为 7.85、4.43 和 4.22。评估表的内部一致性 Cronbach's α 为 0.957,3 个维度分别为 0.922、0.961 和 0.937。3 个维度的测试-重测可靠性分别为 0.976 和 0.862、0.857、0.885。组内相关系数验证了测试-重测可靠性;ICC 为 0.976 和 0.862、0.857、0.885,分别为 3 个维度。
成人有创机械通气系统临床效果评估表具有较高的信度和效度,可在临床环境中使用。