Figure 2. Receiver operating characteristic curves for predicting a poor functional outcome in the internal (A) and external (B) validation sets.

ASTRAL indicates Acute Stroke Registry and Analysis of Lausanne; AUC, area under the receiver operating characteristic curve; CT, computed tomography; HPI, history of present illness; NIHSS, National Institutes of Health Stroke Scale; and PLAN, preadmission comorbidities, level of consciousness, age, and neurological deficit.