4.6 Article

Developing an algorithm across integrated healthcare systems to identify a history of cancer using electronic medical records

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出版社

OXFORD UNIV PRESS
DOI: 10.1093/jamia/ocac044

关键词

electronic health records; cancer; algorithm

资金

  1. National Cancer Institute [HHSN2612018000211]

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This study developed an algorithm using electronic medical records to identify cancer cases not captured in tumor registries, and its performance was validated in multiple integrated healthcare systems. The algorithm can identify cancer cases regardless of when the diagnosis occurred and is of great importance for cancer care research and quality improvement projects.
Objective Tumor registries in integrated healthcare systems (IHCS) have high precision for identifying incident cancer but often miss recently diagnosed cancers or those diagnosed outside of the IHCS. We developed an algorithm using the electronic medical record (EMR) to identify people with a history of cancer not captured in the tumor registry to identify adults, aged 40-65 years, with no history of cancer. Materials and Methods The algorithm was developed at Kaiser Permanente Colorado, and then applied to 7 other IHCS. We included tumor registry data, diagnosis and procedure codes, chemotherapy files, oncology encounters, and revenue data to develop the algorithm. Each IHCS adapted the algorithm to their EMR data and calculated sensitivity and specificity to evaluate the algorithm's performance after iterative chart review. Results We included data from over 1.26 million eligible people across 8 IHCS; 55 601 (4.4%) were in a tumor registry, and 44848 (3.5%) had a reported cancer not captured in a registry. The common attributes of the final algorithm at each site were diagnosis and procedure codes. The sensitivity of the algorithm at each IHCS was 90.65%-100%, and the specificity was 87.91%-100%. Discussion Relying only on tumor registry data would miss nearly half of the identified cancers. Our algorithm was robust and required only minor modifications to adapt to other EMR systems. Conclusion This algorithm can identify cancer cases regardless of when the diagnosis occurred and may be useful for a variety of research applications or quality improvement projects around cancer care.

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