关键词: 压力性损伤, 风险评估, 信效度

Abstract: Objective: To test the reliability, validity and predictive ability of the risk assessment tool for surgical patients with pressure injury in multicenter clinical application, and to compare the clinical application effect with the Waterlow scale. Methods: Quota sampling method was used to select 530 surgical patients undergoing general anesthesia from 4 Grade A hospitals in Tianjin from July to December 2020 as the research objects. The reliability and validity of the risk assessment tool for pressure injury in patients was tested, and the predictive ability was compared with Waterlow scale. Results: The Cronbach’s α coefficients of the risk assessment tool before and after surgery were 0.809 and 0.804, and S-CVI/Ave were 0.905; The contribution rate of cumulative variance of rotation transformation shows that the 12 entries were about 8%, which had strong stability, the contribution rate of cumulative variance of entries with eigenvalue >1 was 75.5%； The area under ROC curve before and after surgery was 0.722 and 0.732, respectively; and the area under ROC of Waterlow scale was 0.574. Conclusion: The risk assessment tool for surgical patients with stress injury has good reliability, validity and prediction ability, which can effectively judge the risk degree of surgical patients with stress injury. It has the characteristics of universality for surgical patients, and lays a foundation for the homogenous prevention and management of pressure injury in the operating room.

Key words: Pressure injury, Risk assessment, Reliability and validity