Figure 4. ROC curves of (A) AORTAs versus ADD score, and (B) AORTAs ≤1/DD_age‐adj vs ADD≤1/DD₅₀₀ rule, in the validation cohorts.

AUC values are presented in insets. N=1478 (282 with acute aortic syndromes, 1196 with alternative diagnoses). ADD indicates aortic dissection detection; DD_age‐adj, age‐adjusted d‐dimer cutoff; and DD₅₀₀, d‐dimer cutoff of 500 ng/mL.