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Validation of parsimonious model. A) Receiver operating characteristic curve showing discrimination of LASSO model in predicting persistent opioid use, a future diagnosis of opioid abuse or dependence and future admissions for opioid abuse, dependence, or toxicity. B) Bar plot showing incidence of persistent opioid use for the predicted risk groups. AUC = area under the curve; LASSO = least absolute shrinkage and selection operator.
