Assessing the quality of patient handovers between ambulance services and emergency department – development and validation of the emergency department human factors in handover tool

Background Patient handover between prehospital care and the emergency department plays a key role in patient safety. Therefore, we aimed to create a validated tool for measuring quality of communication and interprofessional relations during handover in this specific setting. Methods Based on a theoretical framework a comprehensive item pool on information transfer and human factors in emergency department handovers was created and refined in a modified Delphi survey involving clinical experts. Based on a pre-test, items were again revised. The resulting Emergency Department Human Factors in Handover tool (ED-HFH) was validated in a field test at the emergency department of a German university hospital from July to December 2017. The ED-HFH was completed by emergency department and ambulance service staff participating in handovers and by an external observer. Description of item characteristics, exploratory factor analysis, analyses on internal consistency and interrater reliability by intraclass-correlation. Construct validity was analysed by correlation with an overall rating on quality of the handover. Results The draft of the ED-HFH contained 24 items, 90 of 102 eligible staff members participated in the field test completing 133 questionnaires on 38 observed handovers. Four items were deleted after analysis of item characteristics. Factor analysis supported a single factor explaining 39% of variance in the items. Therefore, a sum-score was calculated with a possible range between 14 and 70. The median value of the sum-score in the sample was 61.5, Cronbach’s α was 0.83, intraclass-correlation was 0.52, the correlation with the overall rating of hand-over quality was ρ = 0.83 ( p ≤ 0.001). Conclusions The ED-HFH showed its feasibility, reliability and validity as a measure of quality of information transfer and human factors in handovers between ambulance services and the emergency department. It promises to be a useful tool for quality assurance and staff training.