BMC Med Inform Decis Mak - Identifying work related injuries: comparison of methods for interrogating text fields.

Tópicos

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Resumo

CKGROUND: Work-related injuries in Australia are estimated to cost around $57.5 billion annually, however there are currently insufficient surveillance data available to support an evidence-based public health response. Emergency departments (ED) in Australia are a potential source of information on work-related injuries though most ED's do not have an 'Activity Code' to identify work-related cases with information about the presenting problem recorded in a short free text field. This study compared methods for interrogating text fields for identifying work-related injuries presenting at emergency departments to inform approaches to surveillance of work-related injury.METHODS: Three approaches were used to interrogate an injury description text field to classify cases as work-related: keyword search, index search, and content analytic text mining. Sensitivity and specificity were examined by comparing cases flagged by each approach to cases coded with an Activity code during triage. Methods to improve the sensitivity and/or specificity of each approach were explored by adjusting the classification techniques within each broad approach.RESULTS: The basic keyword search detected 58% of cases (Specificity 0.99), an index search detected 62% of cases (Specificity 0.87), and the content analytic text mining (using adjusted probabilities) approach detected 77% of cases (Specificity 0.95).CONCLUSIONS: The findings of this study provide strong support for continued development of text searching methods to obtain information from routine emergency department data, to improve the capacity for comprehensive injury surveillance.

Resumo Limpo

ckground workrel injuri australia estim cost around billion annual howev current insuffici surveil data avail support evidencebas public health respons emerg depart ed australia potenti sourc inform workrel injuri though ed activ code identifi workrel case inform present problem record short free text field studi compar method interrog text field identifi workrel injuri present emerg depart inform approach surveil workrel injurymethod three approach use interrog injuri descript text field classifi case workrel keyword search index search content analyt text mine sensit specif examin compar case flag approach case code activ code triag method improv sensit andor specif approach explor adjust classif techniqu within broad approachresult basic keyword search detect case specif index search detect case specif content analyt text mine use adjust probabl approach detect case specif conclus find studi provid strong support continu develop text search method obtain inform routin emerg depart data improv capac comprehens injuri surveil

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