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Comparison of the accuracy of classification models to estimate healthcare use and costs associated with COPD exacerbations in Saskatchewan, Canada: A retrospective cohort studyKeywords: chronic obstructive, cost analysis, healthcare costs, logistic models, longitudinal studies, pulmonary disease Abstract: COPD is a high-cost disease and results in frequent contacts with the healthcare system. The study objective was to compare the accuracy of classification models with different covariates for classifying COPD patients into cost groups
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