We queried the Society of Thoracic Surgeons Database for patients undergoing ascending aorta (with or without root) with or without arch replacement from 2004 to 2009. The database captured 45,894 cases, including 12,702 root, 22,048 supracoronary ascending alone, 6,786 ascending plus arch, and 4,358 root plus arch. Baseline characteristics and clinical outcomes were analyzed. A parsimonious multivariable logistic regression model was constructed to predict risks of mortality and major morbidity.