D EPARTMENT OF EPIDEMIOLOGY AND PREVENTIVE MEDICINE.

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Presentation transcript:

D EPARTMENT OF EPIDEMIOLOGY AND PREVENTIVE MEDICINE

P ATIENTS & P URPOSE Purpose: to determine risk factors for various postoperative complications for isolated CABG Patients: The data were collected from the July 2001 to June 2008, patients underwent isolated CABG

S TATISTICAL METHODS Risk factors were identified by logistic regression models and using bootstrap technique The data was divided into two sets including model creation (60%) and model validation (40%) sets. ROC curves were calculated