Derivation and validation of a machine learning record linkage algorithm between emergency medical services and the emergency department.
J Am Med Inform Assoc
; 27(1): 147-153, 2020 01 01.
Article
em En
| MEDLINE
| ID: mdl-31605488
ABSTRACT
OBJECTIVE:
Linking emergency medical services (EMS) electronic patient care reports (ePCRs) to emergency department (ED) records can provide clinicians access to vital information that can alter management. It can also create rich databases for research and quality improvement. Unfortunately, previous attempts at ePCR and ED record linkage have had limited success. In this study, we use supervised machine learning to derive and validate an automated record linkage algorithm between EMS ePCRs and ED records. MATERIALS ANDMETHODS:
All consecutive ePCRs from a single EMS provider between June 2013 and June 2015 were included. A primary reviewer matched ePCRs to a list of ED patients to create a gold standard. Age, gender, last name, first name, social security number, and date of birth were extracted. Data were randomly split into 80% training and 20% test datasets. We derived missing indicators, identical indicators, edit distances, and percent differences. A multivariate logistic regression model was trained using 5-fold cross-validation, using label k-fold, L2 regularization, and class reweighting.RESULTS:
A total of 14 032 ePCRs were included in the study. Interrater reliability between the primary and secondary reviewer had a kappa of 0.9. The algorithm had a sensitivity of 99.4%, a positive predictive value of 99.9%, and an area under the receiver-operating characteristic curve of 0.99 in both the training and test datasets. Date-of-birth match had the highest odds ratio of 16.9, followed by last name match (10.6). Social security number match had an odds ratio of 3.8.CONCLUSIONS:
We were able to successfully derive and validate a record linkage algorithm from a single EMS ePCR provider to our hospital EMR.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Registro Médico Coordenado
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Serviços Médicos de Emergência
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Serviço Hospitalar de Emergência
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Aprendizado de Máquina Supervisionado
Tipo de estudo:
Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Female
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Humans
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Male
Idioma:
En
Revista:
J Am Med Inform Assoc
Ano de publicação:
2020
Tipo de documento:
Article