Paramedic accuracy and confidence with a trauma triage algorithm: a cross-sectional survey
Durham, Mark
Durham, Mark
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Abstract
Abstract published with permission.
Introduction – Since 2008, the UK has been developing trauma networks, with ambulance services
adopting triage tools to support these. So far there has been no published work on how UK
paramedics use these algorithms. This study aims to evaluate factors affecting the accuracy and
self-perceived confidence of paramedics from one UK Ambulance Trust when applying the Major
Trauma Decision Tree.
Methods – A quantitative cross-sectional survey was e-mailed to every paramedic within the
participating Ambulance Trust, asking for basic demographic data and presenting four case
studies. Respondents applied the Major Trauma Decision Tree to the case studies, stating which
algorithm steps (if any) they triggered, and their appropriate destination. A Likert scale was
utilised to explore respondent views on the Major Trauma Decision Tree. Descriptive and
inferential statistics were used to identify linked factors affecting accuracy/confidence.
Results – Of the 1132 paramedics employed by the Trust, 178 completed the survey (16% response
rate). Sensitivity with the Major Trauma Decision Tree was 77% (95% CI 72–81%) and specificity,
61% (95% CI 56–66%). The trigger most commonly missed was patient age of greater than
55 years. Respondents reported that transport time to a major trauma centre/trauma unit
influenced compliance with the algorithm.
Self-perceived confidence was low overall, but correlated positively with frequency of exposure
to trauma (rs
[178] = 0.323, p < 0.0005). Respondents’ concerns about the reception they would
encounter from hospital staff correlated negatively with confidence (rs
[178] = –0.459, p < 0.0005).
Conclusion – Respondent sensitivity when using the Major Trauma Decision Tree was low, which
may be due to paramedic concerns about transport time. The most commonly missed trigger was
patient age. Future training may benefit from addressing these points. In addition, respondents’
confidence with the Major Trauma Decision Tree was also low and closely linked with exposure
to trauma, and the reception anticipated from hospital staff.