Validation of the American College of Surgeons National Surgical Quality Improvement Program risk predictor in an Australian general surgical cohort.

Background: The National Surgical Quality Improvement Program (NSQIP) Surgical Risk Calculator from the American College of Surgeons is a widely available tool for peri-operative risk prediction. This study investigates its predictive performance in an Australian setting.

Methods: A single-centre retrospective external validation study was conducted at a tertiary referral centre in New South Wales, Australia.