Fig. 1From: A novel scale for triage assessment of frailty in the emergency department (ED-FraS): a prospective videotaped studyReceiver operating characteristic curves for the three methods. The diagonal line represents a model of no discriminatory ability. Abbreviations: ED-FraS = Emergency Department Frailty Scale (ED-FraS); TTAS = Taiwan Triage and Acuity Scale; mTTAS = modified TTASBack to article page