Using machine learning to predict subsequent events after EMS non-conveyance decisions

Abstract Background Predictors of subsequent events after Emergency Medical Services (EMS) non-conveyance decisions are still unclear, though patient safety is the priority in prehospital emergency care. The aim of this study was to find out whether machine learning can be used in this context and t...

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Main Authors: Jani Paulin, Akseli Reunamo, Jouni Kurola, Hans Moen, Sanna Salanterä, Heikki Riihimäki, Tero Vesanen, Mari Koivisto, Timo Iirola
Format: Article
Language:English
Published: BMC 2022-06-01
Series:BMC Medical Informatics and Decision Making
Subjects:
Online Access:https://doi.org/10.1186/s12911-022-01901-x
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author Jani Paulin
Akseli Reunamo
Jouni Kurola
Hans Moen
Sanna Salanterä
Heikki Riihimäki
Tero Vesanen
Mari Koivisto
Timo Iirola
author_facet Jani Paulin
Akseli Reunamo
Jouni Kurola
Hans Moen
Sanna Salanterä
Heikki Riihimäki
Tero Vesanen
Mari Koivisto
Timo Iirola
author_sort Jani Paulin
collection DOAJ
description Abstract Background Predictors of subsequent events after Emergency Medical Services (EMS) non-conveyance decisions are still unclear, though patient safety is the priority in prehospital emergency care. The aim of this study was to find out whether machine learning can be used in this context and to identify the predictors of subsequent events based on narrative texts of electronic patient care records (ePCR). Methods This was a prospective cohort study of EMS patients in Finland. The data was collected from three different regions between June 1 and November 30, 2018. Machine learning, in form of text classification, and manual evaluation were used to predict subsequent events from the clinical notes after a non-conveyance mission. Results FastText-model (AUC 0.654) performed best in prediction of subsequent events after EMS non-conveyance missions (n = 11,846). The model and manual analyses showed that many of the subsequent events were planned before, EMS guided the patients to visit primary health care facilities or ED next or following days after non-conveyance. The most frequent signs and symptoms as subsequent event predictors were musculoskeletal-, infection-related and non-specific complaints. 1 in 5 the EMS documentation was inadequate and many of these led to a subsequent event. Conclusion Machine learning can be used to predict subsequent events after EMS non-conveyance missions. From the patient safety perspective, it is notable that subsequent event does not necessarily mean that patient safety is compromised. There were a number of subsequent visits to primary health care or EDs, which were planned before by EMS. This demonstrates the appropriate use of limited resources to avoid unnecessary conveyance to the ED. However, further studies are needed without planned subsequent events to find out the harmful subsequent events, where EMS non-conveyance puts patient safety at risk.
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spelling doaj.art-ff90fc514ca441bfb566c39704cfd5f02022-12-22T02:38:27ZengBMCBMC Medical Informatics and Decision Making1472-69472022-06-0122111210.1186/s12911-022-01901-xUsing machine learning to predict subsequent events after EMS non-conveyance decisionsJani Paulin0Akseli Reunamo1Jouni Kurola2Hans Moen3Sanna Salanterä4Heikki Riihimäki5Tero Vesanen6Mari Koivisto7Timo Iirola8Department of Clinical Medicine, University of Turku and Turku University of Applied SciencesDepartment of Biology, University of TurkuCentre for Prehospital Emergency Care, Kuopio University Hospital and University of Eastern FinlandDepartment of Computing, University of TurkuDepartment of Nursing Science, University of Turku and Turku University HospitalDepartment of Nursing Science, University of TurkuDepartment of Nursing Science, University of TurkuDepartment of Biostatistics, University of TurkuEmergency Medical Services, Turku University Hospital and University of TurkuAbstract Background Predictors of subsequent events after Emergency Medical Services (EMS) non-conveyance decisions are still unclear, though patient safety is the priority in prehospital emergency care. The aim of this study was to find out whether machine learning can be used in this context and to identify the predictors of subsequent events based on narrative texts of electronic patient care records (ePCR). Methods This was a prospective cohort study of EMS patients in Finland. The data was collected from three different regions between June 1 and November 30, 2018. Machine learning, in form of text classification, and manual evaluation were used to predict subsequent events from the clinical notes after a non-conveyance mission. Results FastText-model (AUC 0.654) performed best in prediction of subsequent events after EMS non-conveyance missions (n = 11,846). The model and manual analyses showed that many of the subsequent events were planned before, EMS guided the patients to visit primary health care facilities or ED next or following days after non-conveyance. The most frequent signs and symptoms as subsequent event predictors were musculoskeletal-, infection-related and non-specific complaints. 1 in 5 the EMS documentation was inadequate and many of these led to a subsequent event. Conclusion Machine learning can be used to predict subsequent events after EMS non-conveyance missions. From the patient safety perspective, it is notable that subsequent event does not necessarily mean that patient safety is compromised. There were a number of subsequent visits to primary health care or EDs, which were planned before by EMS. This demonstrates the appropriate use of limited resources to avoid unnecessary conveyance to the ED. However, further studies are needed without planned subsequent events to find out the harmful subsequent events, where EMS non-conveyance puts patient safety at risk.https://doi.org/10.1186/s12911-022-01901-xEmergency medical serviceNon-conveyanceSubsequent eventPatient safetyMachine learningText classification
spellingShingle Jani Paulin
Akseli Reunamo
Jouni Kurola
Hans Moen
Sanna Salanterä
Heikki Riihimäki
Tero Vesanen
Mari Koivisto
Timo Iirola
Using machine learning to predict subsequent events after EMS non-conveyance decisions
BMC Medical Informatics and Decision Making
Emergency medical service
Non-conveyance
Subsequent event
Patient safety
Machine learning
Text classification
title Using machine learning to predict subsequent events after EMS non-conveyance decisions
title_full Using machine learning to predict subsequent events after EMS non-conveyance decisions
title_fullStr Using machine learning to predict subsequent events after EMS non-conveyance decisions
title_full_unstemmed Using machine learning to predict subsequent events after EMS non-conveyance decisions
title_short Using machine learning to predict subsequent events after EMS non-conveyance decisions
title_sort using machine learning to predict subsequent events after ems non conveyance decisions
topic Emergency medical service
Non-conveyance
Subsequent event
Patient safety
Machine learning
Text classification
url https://doi.org/10.1186/s12911-022-01901-x
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