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. 2023 Jan 24;6(1):2118.
doi: 10.23889/ijpds.v8i1.2118. eCollection 2023.

Agreement of acute serious events recorded across datasets using linked Australian general practice, hospital, emergency department and death data: implications for research and surveillance

Sarah Ahmed  1 , Allan Pollack  1 , Alys Havard  2   3 , Sallie-Anne Pearson  3 , Kendal Chidwick  1
Affiliations

Agreement of acute serious events recorded across datasets using linked Australian general practice, hospital, emergency department and death data: implications for research and surveillance

Sarah Ahmed et al. Int J Popul Data Sci. .

Abstract

Introduction: Understanding the level of recording of acute serious events in general practice electronic health records (EHRs) is critical for making decisions about the suitability of general practice datasets to address research questions and requirements for linking general practice EHRs with other datasets.

Objectives: To examine data source agreement of five serious acute events (myocardial infarction, stroke, venous thromboembolism (VTE), pancreatitis and suicide) recorded in general practice EHRs compared with hospital, emergency department (ED) and mortality data.

Methods: Data from 61 general practices routinely contributing data to the MedicineInsight database was linked with New South Wales administrative hospital, ED and mortality data. The study population comprised patients with at least three clinical encounters at participating general practices between 2019 and 2020 and at least one record in hospital, ED or mortality data between 2010 and 2020. Agreement was assessed between MedicineInsight diagnostic algorithms for the five events of interest and coded diagnoses in the administrative data. Dates of concordant events were compared.

Results: The study included 274,420 general practice patients with at least one record in the administrative data between 2010 and 2020. Across the five acute events, specificity and NPV were excellent (>98%) but sensitivity (13%-51%) and PPV (30%-75%) were low. Sensitivity and PPV were highest for VTE (50.9%) and acute pancreatitis (75.2%), respectively. The majority (roughly 70-80%) of true positive cases were recorded in the EHR within 30 days of administrative records.

Conclusion: Large proportions of events identified from administrative data were not detected by diagnostic algorithms applied to general practice EHRs within the specific time period. EHR data extraction and study design only partly explain the low sensitivities/PPVs. Our findings support the use of Australian general practice EHRs linked to hospital, ED and mortality data for robust research on the selected serious acute conditions.

Keywords: Australia; MedicineInsight; acute serious outcomes; electronic health records; linkage; linked data; primary care; validation.

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Conflict of interest statement

Statements on conflicts of interest: SA, AP and KC are employees of NPS MedicineWise, the custodian of MedicineInsight data.

Figures

Figure 1: Selection of the MedicineInsight linkage population and the study cohort
Figure 1: Selection of the MedicineInsight linkage population and the study cohort
See this image and copyright information in PMC

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