Automated Selection of Relevant Information for Notification of Incident Cancer Cases within a Multisource Cancer Registry

V. Jouhet; G. Defossez; P. Ingrand; CRISAP; CoRIM

doi:10.3414/ME12-01-0101

Methods of Information in Medicine, Table of Contents

Methods Inf Med 2013; 52(05): 411-421
DOI: 10.3414/ME12-01-0101

Original Articles

Schattauer GmbH

Automated Selection of Relevant Information for Notification of Incident Cancer Cases within a Multisource Cancer Registry

V. Jouhet

¹Registre général des cancers de Poitou-Charentes, Faculté de médecine, Centre Hospitalier Universitaire de Poitiers, Université de Poitiers, Poitiers, France

²CHU de Bordeaux, Pole de santé publique, Service d’information medicale, Bordeaux, France

,

G. Defossez

¹Registre général des cancers de Poitou-Charentes, Faculté de médecine, Centre Hospitalier Universitaire de Poitiers, Université de Poitiers, Poitiers, France

,

CRISAP, CoRIM,

P. Ingrand

¹Registre général des cancers de Poitou-Charentes, Faculté de médecine, Centre Hospitalier Universitaire de Poitiers, Université de Poitiers, Poitiers, France

⁵INSERM, CIC 802, Poitiers, France

› Author Affiliations

Abstract

Summary

Objective: The aim of this study was to develop and evaluate a selection algorithm of relevant records for the notification of incident cases of cancer on the basis of the in dividual data available in a multi-source information system.

Methods: This work was conducted on data for the year 2008 in the general cancer registry of Poitou-Charentes region (France). The selection algorithm hierarchizes information according to its level of relevance for tumoral topography and tumoral morphology independently. The selected data are combined to form composite records. These records are then grouped in respect with the notification rules of the International Agency for Research on Cancer for multiple primary cancers. The evaluation, based on recall, precision and F-measure confronted cases validated manually by the registry’s physi -cians with tumours notified with and without records selection.

Results: The analysis involved 12,346 tumours validated among 11,971 individuals. The data used were hospital discharge data (104,474 records), pathology data (21,851 records), healthcare insurance data (7508 records) and cancer care centre’s data (686 records). The selection algorithm permitted performances improvement for notification of tumour topography (F-measure 0.926 with vs. 0.857 without selection) and tumour morphology (F-measure 0.805 with vs. 0.750 without selection).

Conclusion: These results show that selection of information according to its origin is efficient in reducing noise generated by imprecise coding. Further research is needed for solving the semantic problems relating to the integration of heterogeneous data and the use of non-structured information.

Keywords

Multisource information system - cancer registry - tumour notification - selection algorithm - relevant information

Full Text

References

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