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Linking disease registries and nationwide healthcare administrative databases: the French renal epidemiology and information network (REIN) insight

Abstract : Background Record linkage is increasingly used in health research worldwide. Combining the patient information available in healthcare, administrative and clinical databases broadens the research perspectives, particularly for chronic diseases. Recent guidelines highlight the need for transparency on the used record linkage processes and the extracted data to be used by researchers. Methods Therefore, the aim of this study was to describe the deterministic iterative approach used to link the French Epidemiology and Information Network (REIN), a French national End-Stage Renal Disease registry, with the Système National des Données de Santé (SNDS), a French nationwide medico-administrative healthcare database. Results Among the 22,073 patients included in the REIN registry who started renal replacement therapy between 2014 and 2015 in France, 19,223 (87.1%) were matched with patients in the SNDS database. Comparison of matched and unmatched patients confirmed the absence of any major selection bias. Then, the record linkage was evaluated using the comorbidity status (diabetes). Conclusions This fast and efficient method of record linkage with pseudonymized data and without unique and direct identifier might inspire other research teams. It also opens the path for new research on chronic kidney disease.
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https://hal.ehesp.fr/hal-02464765
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Submitted on : Monday, February 3, 2020 - 2:38:23 PM
Last modification on : Monday, April 20, 2020 - 4:15:41 PM

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Maxime Raffray, Sahar Bayat, Mathilde Lassalle, Cécile Couchoud. Linking disease registries and nationwide healthcare administrative databases: the French renal epidemiology and information network (REIN) insight. BMC Nephrology, BioMed Central, 2020, 21 (1), pp.25. ⟨10.1186/s12882-020-1692-4⟩. ⟨hal-02464765⟩

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