Epilepsy Among Elderly Medicare Beneficiaries A Validated Approach to Identify Prevalent and Incident Epilepsy
Epilepsy Among Elderly Medicare Beneficiaries A Validated Approach to Identify Prevalent and Incident Epilepsy
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DOI:
10.1097/mlr.0000000000001072
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发表时间:
2019-04-01
期刊:
影响因子:
3
通讯作者:
Hsu, John
中科院分区:
文献类型:
--
作者:
Moura, Lidia M. V. R.;Smith, Jason R.;Hsu, John
Background: Uncertain validity of epilepsy diagnoses within health insurance claims and other large datasets have hindered efforts to study and monitor care at the population level.Objectives: To develop and validate prediction models using longitudinal Medicare administrative data to identify patients with actual epilepsy among those with the diagnosis.Research Design, Subjects, Measures: We used linked electronic health records and Medicare administrative data including claims to predict epilepsy status. A neurologist reviewed electronic health record data to assess epilepsy status in a stratified random sample of Medicare beneficiaries aged 65+ years between January 2012 and December 2014. We then reconstructed the full sample using inverse probability sampling weights. We developed prediction models using longitudinal Medicare data, then in a separate sample evaluated the predictive performance of each model, for example, area under the receiver operating characteristic curve (AUROC), sensitivity, and specificity.Results: Of 20,945 patients in the reconstructed sample, 2.1% had confirmed epilepsy. The best-performing prediction model to identify prevalent epilepsy required epilepsy diagnoses with multiple claims at least 60 days apart, and epilepsy-specific drug claims: AUROC=0.93 [95% confidence interval (CI), 0.90-0.96], and with an 80% diagnostic threshold, sensitivity=87.8% (95% CI, 80.4%-93.2%), specificity= 98.4% (95% CI, 98.2%-98.5%). A similar model also performed well in predicting incident epilepsy (k=0.79; 95% CI, 0.66-0.92).Conclusions: Prediction models using longitudinal Medicare data perform well in predicting incident and prevalent epilepsy status accurately.