External Validation of SAFE Score to Predict Atrial Fibrillation Diagnosis after Ischemic Stroke: A Retrospective Multicenter Study

Figure 2

Repeated cross-validation method with and 10 repetitions. (a) Confusion matrix of the model retested on the internal validation cohort. (b) Confusion matrix of the model trained on the external multicenter cohort. AF: atrial fibrillation diagnosis; no AF: absence of atrial fibrillation diagnosis.

(a)

(b)