Application of a record linkage software to identify mortality of enrolees of large integrated healthcare organisations
by Yichen Zhou; Zhi Liang; Sungching Glenn; Wansu Chen; Fagen Xie
International Journal of Business Intelligence and Data Mining (IJBIDM), Vol. 22, No. 1/2, 2023

Abstract: Information on mortality is important for the improvement of public health and the conduct of medical research. Healthcare organisations typically lack complete and accurate information on mortality. This paper proposes a comprehensive process to link the records of the enrolees of a healthcare organisation with the death records of 2015 obtained from the California State via a commercial data linkage software. The developed linkage process has successfully identified 23,628 and 21,009 death records of health plan enrolees from the state file after the initial and second post-linkage, respectively. Validation of the linkage process against the deaths records documented in the internal systems of the organisation achieved a sensitivity of 97.5% and a positive predictive value of 88.7% at the time of initial linkage but increased to 99.4% in three years using more information available later. The linkage process demonstrated high accuracy and can be utilised to support various business needs.

Online publication date: Wed, 30-Nov-2022

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