Clinical predictors for inappropriate initial diagnosis.

AID: appropriate initial diagnosis; IID: inappropriate initial diagnosis; SBP: systolic blood pressure; HR: heart rate; RR: respiratory rate; HTN: hypertension; HL: hyperlipidemia; DM: diabetes mellitus; IHD: ischemic heart disease; CVA: cerebrovascular accident; TA: true aneurysm; DA: dissection aneurysm; AV: aortic valvular disease; WI: Walk-in visit to the emergency room; SP: sudden pain; MP: migrating pain. Comp: complication; PAO: peripheral arterial occlusion; DC: disturbed consciousness; AR: aortic regurgitation; Tampo: tamponade; CM: coronary malperfusion; HP: hemiplegia; CHF: congestive heart failure; AECG: acute electrocardiagram changes; CECG: chronic ECG changes; MW: mediastinal widening; Car M: cardiomegaly; CHF (X-p): CHF on chest X-p; Classic: classic aortic dissection. Before 2002 indicates the comparison between before 2002 and after 2003.Clinical predictors for inappropriate initial diagnosis.