Methods Inf Med - Visual clustering analysis of CIS logs to inform creation of a user-configurable Web CIS interface.

Tópicos

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Resumo

CKGROUND: In this paper, we describe a new method for the study of clinical information system (CIS) logfiles joined with information in the clinical data warehouse. This method uses heatmap representations and clustering techniques to examine clinicians' viewing patterns of laboratory test results. The context of our application of these techniques is to inform the creation of a widget-based interface to the CIS.OBJECTIVES: We address the rationale, feasibility, and usefulness of our method through examination of three hypotheses: 1) The frequency distribution of laboratory test viewing will follow a 'long tail' pattern, indicating that patterns are highly variable and supporting the rationale for a widget-based configurable system. 2) Patterns of laboratory testing viewing (by clinician, specialty, clinician/patient/day, and ICD-9-CM codes) can be distinguished by our methods. 3) The identified clusters will include more than 80% of the laboratory test elements found in 30 randomly selected patient records for one day.METHODS: The data were plotted as heatmaps and clustered using hierarchical clustering software. Various parameters were tested to give the optimal clusters.RESULTS: All the hypotheses were supported. For Hypothesis 3, 91.4% of information elements in the records were covered by the generated clusters.CONCLUSIONS: Study findings support the rationale, feasibility, and usefulness of our methods to examine patterns of information access among clinicians and to inform the creation of widget-based interfaces. The results also contribute to our general understanding of clinicians' CIS use.

Resumo Limpo

ckground paper describ new method studi clinic inform system cis logfil join inform clinic data warehous method use heatmap represent cluster techniqu examin clinician view pattern laboratori test result context applic techniqu inform creation widgetbas interfac cisobject address rational feasibl use method examin three hypothes frequenc distribut laboratori test view will follow long tail pattern indic pattern high variabl support rational widgetbas configur system pattern laboratori test view clinician specialti clinicianpatientday icdcm code can distinguish method identifi cluster will includ laboratori test element found random select patient record one daymethod data plot heatmap cluster use hierarch cluster softwar various paramet test give optim clustersresult hypothes support hypothesi inform element record cover generat clustersconclus studi find support rational feasibl use method examin pattern inform access among clinician inform creation widgetbas interfac result also contribut general understand clinician cis use

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