Abstract: Objective: To estimate 1-year mortality risk associated with preoperative serious mental illness (SMI) as defined by the Veterans Health Administration (schizophrenia, bipolar disorder, posttraumatic stress disorder [PTSD], major depression) following nonambulatory cardiac or vascular surgical procedures compared to patients without SMI. Cardiac/vascular operations were selected because patients with SMI are known to be at elevated risk of cardiovascular disease.Method: Retrospective analysis of system-wide data from electronic medical records of patients undergoing nonambulatory surgery (inpatient or day-of-surgery admission) October 2005–September 2009 with 1-year follow-up (N=55,864; 99% male;

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