期刊
CLINICAL EPIDEMIOLOGY
卷 14, 期 -, 页码 721-730出版社
DOVE MEDICAL PRESS LTD
DOI: 10.2147/CLEP.S366874
关键词
administrative claims data; diagnosis; ICD-9-CM; ICD-10-CM; out-of-hospital cardiac arrest; validation
资金
- Ditmanson Medical Foundation Chia-Yi Christian Hospital Research Program [R110-18]
- Taichung Veteran's General Hospital, Chiayi Branch [RVHCY111005]
This study developed and validated case definition algorithms for out-of-hospital cardiac arrest (OHCA) based on ICD diagnostic codes and billing codes for NHI reimbursement, providing an important reference for future OHCA studies using the Taiwan NHI database.
Purpose: Taiwan's national health insurance (NHI) database is a valuable resource for large-scale epidemiological and long-term survival research for out-of-hospital cardiac arrest (OHCA). We developed and validated case definition algorithms for OHCA based on the International Classification of Diseases (ICD) diagnostic codes and billing codes for NHI reimbursement. Patients and Methods: Claims data and medical records of all emergency department visits from 2010 to 2020 were retrieved from the hospital's research-based database. Death-related diagnostic codes and keywords were used to identify potential OHCA cases, which were ascertained by chart reviews. We tested the performance of the developed OHCA algorithms and validated them on an external dataset. Results: The algorithm defining OHCA as any cardiac arrest (CA)-related ICD code in the first three diagnosis fields performed the best with a sensitivity of 89.5% (95% confidence interval [CI], 88.2-90.7%), a positive predictive value (PPV) of 90.6% (95% CI, 89.4-91.8%), and a kappa value of 0.900 (95% CI, 0.891-0.909). The second-best algorithm consists of any CA-related ICD code in any diagnosis field with a billing code for triage acuity level 1, achieving a sensitivity of 85.6% (95% CI, 84.1-87.0%), a PPV of 93.6% (95% CI, 92.5-94.5), and a kappa value of 0.894 (95% CI, 0.884-0.903). Both algorithms performed well in external validation. In subgroup analyses, the former algorithm performed the best in adult patients, outpatient claims, and during the ICD-9 era. The latter algorithm performed the best in the inpatient claims and during the ICD-10 era. The best algorithm for identifying pediatric OHCAs was any CA-related ICD code in the first three diagnosis fields with a billing code for triage acuity level 1. Conclusion: Our results may serve as a reference for future OHCA studies using the Taiwan NHI database.
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